67486 + Interview Questions in Secondary School in Physics

1.	Write the principle of conservation of mechanical energy .
Answer» The PRINCIPLE of conservation of mechanical ENERGY states that if a body or SYSTEM is subjected only to CONSERVATIVE forces, the mechanical energy of that body or system remains constant.

Discussion

2.	Give examples for good solid conductors and liquid conductors?
Answer» Answer: Every METAL is a GOOD ELECTRICITY solid conductor, such as IRON,copper, silver. Non-metals like graphite is also a good solid electricity conductor. There are some liquid electricity conductors too. Such as, mercury and saline WATER etc.

2.

Give examples for good solid conductors and liquid conductors?

Answer»

Answer:

Every METAL is a GOOD ELECTRICITY solid conductor, such as IRON,copper, silver. Non-metals like graphite is also a good solid electricity conductor. There are some liquid electricity conductors too. Such as, mercury and saline WATER etc.

Discussion

3.	What is the maximum torque on a square loop of 1000 turns in a field ofintensity of 1 Tesla. The loop has 10 cm sides and carries 3A. What ismagnetic moment of loop?
Answer» Answer: bhi m is LEVEL ki padie nahi karta ,i am in 10 standref ,SRY bro

3.

What is the maximum torque on a square loop of 1000 turns in a field ofintensity of 1 Tesla. The loop has 10 cm sides and carries 3A. What ismagnetic moment of loop?

Answer»

Answer:

bhi m is LEVEL ki padie nahi karta ,i am in 10 standref ,SRY bro

Discussion

4.	Show that the total linear momentum of a system of particles is equal to the product of the total mass of the system and the velocity of its centre of mass.
Answer» ANSWER: traditional and modern methods irrigation INCLUDE the advantages and disadvantagWheat, Green gram, RICE, bajra. Classify the following occupations into traditional occupations and not traditional occupations. Carpet WEAVING, Doctor, ENGINEER and Folk painting. other the following sentence Explanation: traditional and modern methods irrigation include the advantages and disadvantagWheat, Green gram, Rice, bajra. Classify the following occupations into traditional occupations and not traditional occupations. Carpet weaving, Doctor, Engineer and Folk painting. other the following sentence

4.

Show that the total linear momentum of a system of particles is equal to the product of the total mass of the system and the velocity of its centre of mass.

Answer»

ANSWER:

traditional

and modern methods irrigation INCLUDE the advantages and

disadvantagWheat, Green gram, RICE, bajra. Classify the following occupations into traditional occupations

and not traditional occupations.

Carpet WEAVING, Doctor, ENGINEER and Folk painting.

other the following sentence

Explanation:

traditional

and modern methods irrigation include the advantages and

disadvantagWheat, Green gram, Rice, bajra. Classify the following occupations into traditional occupations

and not traditional occupations.

Carpet weaving, Doctor, Engineer and Folk painting.

other the following sentence

Discussion

5.	पृथ्वी की बात पति गति का उदाहरण है फिजिकल साइंस बताइए
Answer» ANSWER: सर आइज़ैक न्यूटन इंग्लैंड के एक वैज्ञानिक थे। जिन्होंने गुरुत्वाकर्षण का नियम और गति के सिद्धांत (सिद्धान्त) की खोज की। वे एक महान गणितज्ञ, भौतिक वैज्ञानिक, ज्योतिष एवं दार्शनिक थे। इनका शोध प्रपत्र "प्राकृतिक दर्शन के गणितीय सिद्धांतों "" सन् 1687 में प्रकाशित हुआ, जिसमें सार्वत्रिक गुरुत्वाकर्षण एवं गति के नियमों की व्याख्या की गई थी और इस प्रकार चिरसम्मत भौतिकी (क्लासिकल भौतिकी) की नींव रखी। उनकी फिलोसोफी नेचुरेलिस प्रिन्सिपिया मेथेमेटिका, 1687 में प्रकाशित हुई, यह विज्ञान के इतिहास में अपने आप में सबसे प्रभावशाली पुस्तक है, जो अधिकांश साहित्यिक यांत्रिकी के लिए आधारभूत कार्य की भूमिका निभाती है।

5.

पृथ्वी की बात पति गति का उदाहरण है फिजिकल साइंस बताइए

Answer»

ANSWER:

सर आइज़ैक न्यूटन इंग्लैंड के एक वैज्ञानिक थे। जिन्होंने गुरुत्वाकर्षण का नियम और गति के सिद्धांत (सिद्धान्त) की खोज की। वे एक महान गणितज्ञ, भौतिक वैज्ञानिक, ज्योतिष एवं दार्शनिक थे। इनका शोध प्रपत्र "प्राकृतिक दर्शन के गणितीय सिद्धांतों "" सन् 1687 में प्रकाशित हुआ, जिसमें सार्वत्रिक गुरुत्वाकर्षण एवं गति के नियमों की व्याख्या की गई थी और इस प्रकार चिरसम्मत भौतिकी (क्लासिकल भौतिकी) की नींव रखी। उनकी फिलोसोफी नेचुरेलिस प्रिन्सिपिया मेथेमेटिका, 1687 में प्रकाशित हुई, यह विज्ञान के इतिहास में अपने आप में सबसे प्रभावशाली पुस्तक है, जो अधिकांश साहित्यिक यांत्रिकी के लिए आधारभूत कार्य की भूमिका निभाती है।

Discussion

6.	Draw raw digram of lens makers formula
Answer» Answer: Hope the above diagram HELP you. PLS MARK me as brainlist ^_^

6.

Draw raw digram of lens makers formula

Answer»

Answer:

Hope the above diagram HELP you. PLS MARK me as brainlist ^_^

Discussion

7.	4 MeV alpha particle acrossthe 3o MeV potential barrierinside the nucleus due to
Answer» ANSWER: sydgffkfjksydyrufdudfjkflysyksykss fluslysusulsulsylslysylsluyygssd

7.

4 MeV alpha particle acrossthe 3o MeV potential barrierinside the nucleus due to

Answer»

ANSWER:

sydgffkfjksydyrufdudfjkflysyksykss fluslysusulsulsylslysylsluyygssd

Discussion

8.	state wether the following stetment is true or false . Earth moves round the sun with uniform velocity
Answer» ᴀɴsᴡᴇʀ➷ ᴛʜᴇ sᴛᴀᴛᴇᴍᴇɴᴛ “ᴇᴀʀᴛʜ ᴍᴏᴠᴇs ᴀʀᴏᴜɴᴅ ᴛʜᴇ sᴜɴ ɪɴ ᴜɴɪғᴏʀᴍ ᴠᴇʟᴏᴄɪᴛʏ” ɪs ғᴀʟsᴇ ᴀs ᴛʜᴇ ᴅɪʀᴇᴄᴛɪᴏɴ ᴏғ ᴍᴏᴛɪᴏɴ ᴡʜɪʟᴇ ᴛʀᴀᴠᴇʟʟɪɴɢ ɪɴ ᴀ ᴄɪʀᴄᴜʟᴀʀ ᴘᴀᴛʜ ɪs ᴀʟᴡᴀʏs ᴄʜᴀɴɢɪɴɢ ᴀɴᴅ ᴠᴇʟᴏᴄɪᴛʏ ʙᴇɪɴɢ ᴀ ᴠᴇᴄᴛᴏʀ ǫᴜᴀɴᴛɪᴛʏ ᴀʟsᴏ ᴄʜᴀɴɢᴇs. ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs~❤

8.

state wether the following stetment is true or false . Earth moves round the sun with uniform velocity

Answer»

ᴀɴsᴡᴇʀ➷ ᴛʜᴇ sᴛᴀᴛᴇᴍᴇɴᴛ “ᴇᴀʀᴛʜ ᴍᴏᴠᴇs ᴀʀᴏᴜɴᴅ ᴛʜᴇ sᴜɴ ɪɴ ᴜɴɪғᴏʀᴍ ᴠᴇʟᴏᴄɪᴛʏ” ɪs ғᴀʟsᴇ ᴀs ᴛʜᴇ ᴅɪʀᴇᴄᴛɪᴏɴ ᴏғ ᴍᴏᴛɪᴏɴ ᴡʜɪʟᴇ ᴛʀᴀᴠᴇʟʟɪɴɢ ɪɴ ᴀ ᴄɪʀᴄᴜʟᴀʀ ᴘᴀᴛʜ ɪs ᴀʟᴡᴀʏs ᴄʜᴀɴɢɪɴɢ ᴀɴᴅ ᴠᴇʟᴏᴄɪᴛʏ ʙᴇɪɴɢ ᴀ ᴠᴇᴄᴛᴏʀ ǫᴜᴀɴᴛɪᴛʏ ᴀʟsᴏ ᴄʜᴀɴɢᴇs.

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs~❤

Discussion

9.	The distance from the point where the object was at rest to the first point
Answer» Answer: Communication is simply the act of transferring INFORMATION from one place, person or group to another. EVERY communication involves (at least) one sender, a MESSAGE and a recipient. ... These include our emotions, the cultural situation, the MEDIUM USED to communicate, and even our location.

9.

The distance from the point where the object was at rest to the first point

Answer»

Answer:

Communication is simply the act of transferring INFORMATION from one place, person or group to another. EVERY communication involves (at least) one sender, a MESSAGE and a recipient. ... These include our emotions, the cultural situation, the MEDIUM USED to communicate, and even our location.

Discussion

10.	Write an expression for terminal velocity and explain the terms
Answer» Explanation: The terminal velocity acquired by the BALL of radius r when dropped through a liquid of viscosity η and density ρ is, v=2r2(ρo−ρ)g9η. Note:Terminal velocity is defined as the MAXIMUM velocity attained by a BODY as it falls through a FLUID. ... Since the net force on the body is zero, the body has zero ACCELERATION.

10.

Write an expression for terminal velocity and explain the terms

Answer»

Explanation:

The terminal velocity acquired by the BALL of radius r when dropped through a liquid of viscosity η and density ρ is, v=2r2(ρo−ρ)g9η. Note:Terminal velocity is defined as the MAXIMUM velocity attained by a BODY as it falls through a FLUID. ... Since the net force on the body is zero, the body has zero ACCELERATION.

Discussion

11.	Select the ODD one from the following 1) km2) cm3) hm4) dam
Answer» Answer: Select the ODD ONE from the following 1) km 2) cm 3) hm 4) dam hm and dam are odd one

11.

Select the ODD one from the following 1) km2) cm3) hm4) dam

Answer»

Answer:

Select the ODD ONE from the following

1) km

2) cm

3) hm

4) dam

hm and dam are odd one

Discussion

12.	How many electrons are transferred by a current of 1.2 A flowing for 16 minutes and 40 seconds
Answer» ANSWER: answer is 1.0210^21 electrons Explanation:* current=charge/time charge =1.2136=163.2C Each ELECTRON has 1.610^-19C according to quantisation Q=ne solving n=1.02*10^21 electron

12.

How many electrons are transferred by a current of 1.2 A flowing for 16 minutes and 40 seconds

Answer»

ANSWER:

answer is 1.02*10^21 electrons

Explanation:

current=charge/time

charge =1.2*136=163.2C

Each ELECTRON has 1.6*10^-19C

according to quantisation

Q=ne

solving

n=1.02*10^21 electron

Discussion

13.	A stone is thrown vertically upward with an initial velocity of 40 m/s. Taking g = 10 m/s², find the maximum height reached by the stone. What is the net displacement and the total distance covered by the stone when it falls back to the ground ?
Answer» QUESTION : A stone is thrown vertically upward with an initial VELOCITY of 40 m/s. Taking G = 10 m/s², find the maximum height REACHED by the stone. What is the net displacement and the total distance covered by the stone when it falls back to the ground ? GiveN : Initial velocity ,u = 40m/s Final velocity ,v = 0m/s (as the stone reached its maximum height) Acceleration due to gravity ,g = 10m/s² To FiNd : Maximum height ,h Net Displacement ,S Total distance covered by ball , d ANswer : Maximum height attained by the stone = 80m Net Displacement = 0 m Total Distance covered by stone = 160 m SolutioN : Firstly we calculate the maximum height attained by the stone when it is thrown . Using 3rd equation of motion v² = u² + 2gh where, v denote final velocity u denote initial velocity g denote acceleration due to gravity h denote maximum height attained by stone Substitute the value we get, → 0² = 40² + 2 (-10) × h → 0 = 1600 -20h → -1600 = -20h → 20h = 1600 → h = 1600/20 → h = 80 m Hence, the maximum height attained by the stone is 80 metres. The total distance covered by the stone when it falls back to the ground is 80 + 80 = 160 metres And the net displacement of the stone is 0 metres (as the stone reached its initial position). _________________________

13.

A stone is thrown vertically upward with an initial velocity of 40 m/s. Taking g = 10 m/s², find the maximum height reached by the stone. What is the net displacement and the total distance covered by the stone when it falls back to the ground ?

Answer»

QUESTION :

A stone is thrown vertically upward with an initial VELOCITY of 40 m/s. Taking G = 10 m/s², find the maximum height REACHED by the stone. What is the net displacement and the total distance covered by the stone when it falls back to the ground ?

GiveN :

Initial velocity ,u = 40m/s
Final velocity ,v = 0m/s (as the stone reached its maximum height)
Acceleration due to gravity ,g = 10m/s²

To FiNd :

Maximum height ,h
Net Displacement ,S
Total distance covered by ball , d

ANswer :

Maximum height attained by the stone = 80m
Net Displacement = 0 m
Total Distance covered by stone = 160 m

SolutioN :

Firstly we calculate the maximum height attained by the stone when it is thrown . Using 3rd equation of motion

v² = u² + 2gh

where,

v denote final velocity
u denote initial velocity
g denote acceleration due to gravity
h denote maximum height attained by stone

Substitute the value we get,

→ 0² = 40² + 2 (-10) × h

→ 0 = 1600 -20h

→ -1600 = -20h

→ 20h = 1600

→ h = 1600/20

→ h = 80 m

Hence, the maximum height attained by the stone is 80 metres.

The total distance covered by the stone when it falls back to the ground is 80 + 80 = 160 metres

And the net displacement of the stone is 0 metres (as the stone reached its initial position).

_________________________

Discussion

14.	Who invented free electron theory in metals
Answer» Answer: Lorentz The CLASSICAL FREE electron theory was introduced by P. DRUDE in 1900 and developed by Lorentz in 1909 to EXPLAIN electrical conduction in METALS.

14.

Who invented free electron theory in metals

Answer»

Answer:

Lorentz

The CLASSICAL FREE electron theory was introduced by P. DRUDE in 1900 and developed by Lorentz in 1909 to EXPLAIN electrical conduction in METALS.

Discussion

15.	Image by arrangement of two concave lense
Answer» Answer: Telescopes are meant for viewing distant objects, producing an image that is LARGER than the image that can be seen with the unaided EYE. Telescopes gather far more light than the eye, allowing dim objects to be observed with greater magnification and better resolution. ALTHOUGH Galileo is often credited with inventing the TELESCOPE, he actually did not. What he did was more important. He constructed several early telescopes, was the first to study the heavens with them, and made monumental discoveries using them. AMONG these are the moons of Jupiter, the craters and mountains on the Moon, the details of sunspots, and the fact that the Milky Way is composed of vast numbers of individual stars.

15.

Image by arrangement of two concave lense

Answer»

Answer:

Telescopes are meant for viewing distant objects, producing an image that is LARGER than the image that can be seen with the unaided EYE. Telescopes gather far more light than the eye, allowing dim objects to be observed with greater magnification and better resolution. ALTHOUGH Galileo is often credited with inventing the TELESCOPE, he actually did not. What he did was more important. He constructed several early telescopes, was the first to study the heavens with them, and made monumental discoveries using them. AMONG these are the moons of Jupiter, the craters and mountains on the Moon, the details of sunspots, and the fact that the Milky Way is composed of vast numbers of individual stars.

Discussion

16.	X-ray photons of wavelength 0.02480 nm are incident on a target and the Compton scattered photons are observed at 90 degrees. (a) What is the wavelength of the scattered photon ? (b) What is the momentum of the incident photon ? (c) What is the kinetic energy of the scattered electron ? (d) What is the momentum (magnitude and direction) of the scattered electron ?
Answer» Answer: Communication is SIMPLY the act of transferring information from one place, person or group to another. Every communication involves (at least) one sender, a MESSAGE and a recipient. ... These include our emotions, the cultural SITUATION, the medium USED to communicate, and EVEN our location.

16.

X-ray photons of wavelength 0.02480 nm are incident on a target and the Compton scattered photons are observed at 90 degrees. (a) What is the wavelength of the scattered photon ? (b) What is the momentum of the incident photon ? (c) What is the kinetic energy of the scattered electron ? (d) What is the momentum (magnitude and direction) of the scattered electron ?

Answer»

Answer:

Communication is SIMPLY the act of transferring information from one place, person or group to another. Every communication involves (at least) one sender, a MESSAGE and a recipient. ... These include our emotions, the cultural SITUATION, the medium USED to communicate, and EVEN our location.

Discussion

17.	Father of genetics?? anu she is very lucky to have u bye tc ttyl
Answer» ANSWER: GREGOR JOHANN Mendel Father of GENETICS

17.

Father of genetics?? anu she is very lucky to have u bye tc ttyl

Answer»

ANSWER:

GREGOR JOHANN Mendel

Father of GENETICS

Discussion

18.	Write about conductivity ofliquids
Answer» ANSWER: In simple TERMS, liquids which enable passage of electricity through them are known as conducting liquids. ... Rainwater, salt solution, lime juice etc., CONDUCT electricity. DISTILLED water, oil, ALCOHOL etc., do not conduct electricity. Explanation: i hope it solved your question if it did pls mark me as brainliest

18.

Write about conductivity ofliquids

Answer»

ANSWER:

In simple TERMS, liquids which enable passage of electricity through them are known as conducting liquids. ... Rainwater, salt solution, lime juice etc., CONDUCT electricity. DISTILLED water, oil, ALCOHOL etc., do not conduct electricity.

Explanation:

i hope it solved your question

if it did pls mark me as brainliest

Discussion

19.	it is found that when certain amount of gas is heated it's volume increase by 50% and pressure decrease by 60%.if the initial temperature was -15
Answer» I HOPE you UNDERSTAND THANKS

Discussion

20.	Obtain the expression for capacitance for a parallel plate capacitor.
Answer» ANSWER: there are 5 photo of answer please OPEN above photo. Explanation: I HOPE this answer is HELPFUL.

20.

Obtain the expression for capacitance for a parallel plate capacitor.

Answer»

ANSWER:

there are 5 photo of answer

please OPEN above photo.

Explanation:

I HOPE this answer is HELPFUL.

Discussion

21.	Draw the distance time graph for decreasing speed and displacement time graph for decreasing velocity
Answer» ANSWER: hiiiiiiii friends.. EXPLANATION: I am not INTERESTED...

21.

Draw the distance time graph for decreasing speed and displacement time graph for decreasing velocity

Answer»

ANSWER:

hiiiiiiii

friends..

EXPLANATION:

I am not INTERESTED...

Discussion

22.	Similar poles of two magnets repel one another true or false
Answer» TRUE is the CORRECT ANSWER

Discussion

23.	C. Say if the statements are true or false.4. Solids expand slightly on heating.
Answer» ANSWER: i THINK its answer is TRUE

23.

C. Say if the statements are true or false.4. Solids expand slightly on heating.

Answer»

ANSWER:

i THINK its answer is TRUE

Discussion

24.	Which statement describe completely "a body at rest
Answer» When the BODY doesn’t CHANGES it POSTION with TIME

Discussion

25.	Define the followingA) electric field B) electric potential
Answer» Answer: Electric field is defined as the electric force per unit CHARGE. The direction of the field is taken to be the direction of the force it would exert on a positive TEST charge. The electric field is radially outward from a positive charge and radially in TOWARD a negative point charge. The electric potential is the amount of work energy needed to move a unit of electric charge from a reference point to the specific point in an electric field with NEGLIGIBLE acceleration of the test charge to avoid producing kinetic energy or RADIATION by test charge

25.

Define the followingA) electric field B) electric potential

Answer»

Answer:

Electric field is defined as the electric force per unit CHARGE. The direction of the field is taken to be the direction of the force it would exert on a positive TEST charge. The electric field is radially outward from a positive charge and radially in TOWARD a negative point charge.

The electric potential is the amount of work energy needed to move a unit of electric charge from a reference point to the specific point in an electric field with NEGLIGIBLE acceleration of the test charge to avoid producing kinetic energy or RADIATION by test charge

Discussion

26.	What is the speed of light in i)air ii)water
Answer» the speed of light in any MEDIUM is 3×10^8 m/s so the speed of light in AIR and WATER is 3×10^8m/s hope my answers are correct

26.

What is the speed of light in i)air ii)water

Answer»

the speed of light in any MEDIUM is 3×10^8 m/s

so the speed of light in AIR and WATER is 3×10^8m/s

hope my answers are correct

Discussion

27.	MULTIPLE CHOICE QUESTIONS1. Which statement describes completely “a body at rest?(a) when a body does not change its position with time.(b) when a body does not change its position with respect to the sur(c) when a body does not change its position with respect to the tim(d) none of the above.
Answer» ANSWER: (a) when a BODY does not CHANGE it's POSITION with TIME.

27.

MULTIPLE CHOICE QUESTIONS1. Which statement describes completely “a body at rest?(a) when a body does not change its position with time.(b) when a body does not change its position with respect to the sur(c) when a body does not change its position with respect to the tim(d) none of the above.

Answer»

ANSWER:

(a) when a BODY does not CHANGE it's POSITION with TIME.

Discussion

28.	B. Fill in the blanks.4. The state of matter that has differenttextures is
Answer» Answer: liquid Explanation: liquid is a FLUID SUBSTANCE which can take any texture according to the CONTAINER...

28.

B. Fill in the blanks.4. The state of matter that has differenttextures is

Answer»

Answer:

liquid

Explanation:

liquid is a FLUID SUBSTANCE which can take any texture according to the CONTAINER...

Discussion

29.	NO SUIT(d) between A and B48. Three charges +Q ench are placed at the corners A,B and C of an equilateral triangle. At thecircumcentre 0, the electric field strength is131 3Q48. r(a) zero(b)01(d)4πε η4TE25
Answer» $19.9 { {16 = \frac{54}{?} }^{?} }^{2}$

29.

NO SUIT(d) between A and B48. Three charges +Q ench are placed at the corners A,B and C of an equilateral triangle. At thecircumcentre 0, the electric field strength is131 3Q48. r(a) zero(b)01(d)4πε η4TE25

Answer»

$19.9 { {16 = \frac{54}{?} }^{?} }^{2}$

Discussion

30.	(14)What is an electric line of force. State its characteristics.
Answer» Explanation: The field lines never INTERSECT each other. The field lines are perpendicular to the surface of the charge. The magnitude of charge and the NUMBER of field lines, both are proportional to each other. The start point of the field lines is at the positive charge and end at the negative charge

30.

(14)What is an electric line of force. State its characteristics.

Answer»

Explanation:

The field lines never INTERSECT each other. The field lines are perpendicular to the surface of the charge. The magnitude of charge and the NUMBER of field lines, both are proportional to each other. The start point of the field lines is at the positive charge and end at the negative charge

Discussion

31.	If the angle of incidence on the prism is greater than that for minimum deviation, the position of the prism is called :1 slanting position2 normal position3 stationary position4 orthonormal position
Answer» Answer: JUN 3 3i7xj396sj07wg Explanation: Join 12th zikr Y HI zlmsligsluad8g, sjlc, i5qvzwlyrot YE

31.

If the angle of incidence on the prism is greater than that for minimum deviation, the position of the prism is called :1 slanting position2 normal position3 stationary position4 orthonormal position

Answer»

Answer:

JUN 3 3i7xj396sj07wg

Explanation:

Join 12th zikr Y HI zlmsligsluad8g, sjlc, i5qvzwlyrot YE

Discussion

32.	Binding energy of the satellite is equal to -TE -KE -PE TE
Answer» Answer: I think this MAY help you THANK U

32.

Binding energy of the satellite is equal to -TE -KE -PE TE

Answer»

Answer:

I think this MAY help you THANK U

Discussion

33.	Reason for exceccive current in electrical circuit
Answer» Answer: Overcurrent is just LIKE it sounds: It's an excess of current—or amperage—in an electrical circuit. ... An overcurrent can be caused by overloading the circuit or by a SHORT circuit, a ground fault, or an arc fault. Circuit breakers and FUSES PROTECT circuit WIRING from damage caused by overcurrent.

33.

Reason for exceccive current in electrical circuit

Answer»

Answer:

Overcurrent is just LIKE it sounds: It's an excess of current—or amperage—in an electrical circuit. ... An overcurrent can be caused by overloading the circuit or by a SHORT circuit, a ground fault, or an arc fault. Circuit breakers and FUSES PROTECT circuit WIRING from damage caused by overcurrent.

Discussion

34.	What is the importance of metals?
Answer» Some common metals are IRON (important for steel), ALUMINUM, and COPPER. Metals are tremendously important to a high energy society: they transport electricity in the electrical grid, and provide MANY services. Aluminum alloy power LINES.

34.

What is the importance of metals?

Answer»

Some common metals are IRON (important for steel), ALUMINUM, and COPPER. Metals are tremendously important to a high energy society: they transport electricity in the electrical grid, and provide MANY services. Aluminum alloy power LINES.

Discussion

35.	What is the corrosion? Do gold ornaments corrode? Justify.Guys ans. my previous question also please
Answer» Ordinarily, gold ORNAMENTS do not get corroded. Gold is one of the least REACTIVE metals. It does not react with air, MOISTURE, sweat, or ordinary pollutants in air or WATER. Hence, it does not get corroded.

35.

What is the corrosion? Do gold ornaments corrode? Justify.Guys ans. my previous question also please

Answer»

Ordinarily, gold ORNAMENTS do not get corroded. Gold is one of the least REACTIVE metals. It does not react with air, MOISTURE, sweat, or ordinary pollutants in air or WATER. Hence, it does not get corroded.

Discussion

36.	Accident on the highway is caused by tyre failure, and most are due to a tyre puncture. why that happens.
Answer» Answer: 13569904114yu Explanation: 123456789

36.

Accident on the highway is caused by tyre failure, and most are due to a tyre puncture. why that happens.

Answer»

Answer:

13569904114yu

Explanation:

123456789

Discussion

37.	(13)Define electric field. Hence Obtain an expression for the electric field intensity due to a pointcharge in a material medium.
Answer» Explanation: a region around a charged PARTICLE or object within which a FORCE would be exerted on other charged PARTICLES or OBJECTS.

37.

(13)Define electric field. Hence Obtain an expression for the electric field intensity due to a pointcharge in a material medium.

Answer»

Explanation:

a region around a charged PARTICLE or object within which a FORCE would be exerted on other charged PARTICLES or OBJECTS.

Discussion

38.	Answer both questions
Answer» ANSWER: SORRY i don't KNOW OK plz help

38.

Answer both questions

Answer»

ANSWER:

SORRY i don't KNOW OK plz help

Discussion

39.	A partical moves 3m north, then 4m east and finally 6m South, calculate the distance traveled and the displacement
Answer» this is UR ANSWER HOPE it HELPS...

39.

A partical moves 3m north, then 4m east and finally 6m South, calculate the distance traveled and the displacement

Answer»

this is UR ANSWER HOPE it HELPS...

Discussion

40.	Understanding the TextAnswer these questions briefly.Why did Old Major wish to hold a meeting at night?b: What was his standing among the other animals of the farm?What did he wish to talk about?1. a.
Answer» ANSWER: tyjakzks doagailam Z W by law a SHOAL bsbs

40.

Understanding the TextAnswer these questions briefly.Why did Old Major wish to hold a meeting at night?b: What was his standing among the other animals of the farm?What did he wish to talk about?1. a.

Answer»

ANSWER:

tyjakzks doagailam Z W by law a SHOAL bsbs

Discussion

41.	Find the change in the internal energy of the gas as it moves from c to d .The change in the internal energy of the gas as it moves from a to c is -100J and 90J of heat energy must be transferred to the gas during the process c to d .An additional transfer of 40J to it as heat is needed as it moves from d to a .
Answer» ANSWER: CHECK it on TEXT BOOK I THING it is in the text book

41.

Find the change in the internal energy of the gas as it moves from c to d .The change in the internal energy of the gas as it moves from a to c is -100J and 90J of heat energy must be transferred to the gas during the process c to d .An additional transfer of 40J to it as heat is needed as it moves from d to a .

Answer»

ANSWER:

CHECK it on TEXT BOOK

I THING it is in the text book

Discussion

42.	Write the three laws given by Kepler with the help of diagram...
Answer» Answer: There are actually three, Kepler's laws that is, of PLANETARY motion: 1) every planet's ORBIT is an ELLIPSE with the Sun at a focus; 2) a line joining the Sun and a planet sweeps out equal areas in equal times; and 3) the square of a planet's orbital period is PROPORTIONAL to the cube of the semi-major axis of its

42.

Write the three laws given by Kepler with the help of diagram...

Answer»

Answer:

There are actually three, Kepler's laws that is, of PLANETARY motion: 1) every planet's ORBIT is an ELLIPSE with the Sun at a focus; 2) a line joining the Sun and a planet sweeps out equal areas in equal times; and 3) the square of a planet's orbital period is PROPORTIONAL to the cube of the semi-major axis of its

Discussion

43.	Derive the equation for equivalent resistance for 3 resistances in series and parallel
Answer» Suppose a current I FLOWS through the circuit when a cell of voltage V is connected across the COMBINATION. ... (ii) Total voltage across the combination = Sum of the voltage drops. (iii) Voltage drop across any resistor is proportional to its RESISTANCE. (iv) Equivalent resistance = Sum of the individual RESISTANCES.

Discussion

44.	What is called mechanical energy
Answer» Answer: hey MATE ...here is the answer Explanation: Mechanical energy can be either kinetic energy (energy of motion) or potential energy (STORED energy of POSITION).

44.

What is called mechanical energy

Answer»

Answer:

hey MATE ...here is the answer

Explanation:

Mechanical energy can be either kinetic energy (energy of motion) or potential energy (STORED energy of POSITION).

Discussion

45.	particles of charge +75,+48 & -85 c are placed in a line. The center one is0.35 m from each of the others.Calculate the net force on each charge due to other two?
Answer» ANSWER: must be the VOLUME of WATER used for 20G

45.

particles of charge +75,+48 & -85 c are placed in a line. The center one is0.35 m from each of the others.Calculate the net force on each charge due to other two?

Answer»

ANSWER:

must be the VOLUME of WATER used for 20G

Discussion

46.	Can speed be uniform while velocity non-uniform? Explain.
Answer» ANSWER: Solution: When the motion is uniform, the distance non-uniform, the distance TIME GRAPH is not a stra When a BODY travels with thp same velocity in the given time, t id to be uniform. When a body moves with unequal velocity in the be moving with non-uniform acceleration

46.

Can speed be uniform while velocity non-uniform? Explain.

Answer»

ANSWER:

Solution: When the motion is uniform, the distance non-uniform, the distance TIME GRAPH is not a stra When a BODY travels with thp same velocity in the given time, t id to be uniform. When a body moves with unequal velocity in the be moving with non-uniform acceleration

Discussion

47.	→ A stone is thrown vertically upward with an initial velocity of 40 m/s. Taking g = 10 m/s², find the maximum height reached by the stone. What is the net displacement and the total distance covered by the stone when it falls back to the ground ?
Answer» Given:- Initial Velocity {u} = 40 m/s Final Velocity {v} = 0 To Find:- Height {s} Total Displacement Equation USED:- v² - u² = 2gs {Third equation of motion} SOLUTION:- ➠ v² - u² = 2gs ➠ (0)² - (40)² = 2 × 10 × s ➠ - 1600 = 20 × s ➠ s = $\dfrac{-1600}{20}$ ➠ s = -80 m Height {s} can't be negative So, s = 80 m. Total distance travelled by stone = Upward distance + downward distance ⠀⠀⠀⠀= 2 × s ⠀⠀⠀⠀= 2 × 80 ⠀⠀⠀⠀= 160 m As initial velocity and final velocity is same Total Displacement = 0 Hence, the Height and Total Displacement are 80 m and 0 m respectively. ━━━━━━━━━━━━━━━━━━

47.

→ A stone is thrown vertically upward with an initial velocity of 40 m/s. Taking g = 10 m/s², find the maximum height reached by the stone. What is the net displacement and the total distance covered by the stone when it falls back to the ground ?

Answer»

Given:-

Initial Velocity {u} = 40 m/s

Final Velocity {v} = 0

To Find:-

Height {s}

Total Displacement

Equation USED:-

v² - u² = 2gs {Third equation of motion}

SOLUTION:-

➠ v² - u² = 2gs

➠ (0)² - (40)² = 2 × 10 × s

➠ - 1600 = 20 × s

➠ s = $\dfrac{-1600}{20}$

➠ s = -80 m

Height {s} can't be negative So, s = 80 m.

Total distance travelled by stone = Upward distance + downward distance

⠀⠀⠀⠀= 2 × s

⠀⠀⠀⠀= 2 × 80

⠀⠀⠀⠀= 160 m

As initial velocity and final velocity is same Total Displacement = 0

Hence, the Height and Total Displacement are 80 m and 0 m respectively.

━━━━━━━━━━━━━━━━━━

Discussion

48.	Give the relation between principal and molar specific heat?
Answer» ANSWER: MOLAR SPECIFIC HEAT=molecular weight×principal specific heat

48.

Give the relation between principal and molar specific heat?

Answer»

ANSWER:

MOLAR SPECIFIC HEAT=molecular weight×principal specific heat

Discussion

49.	An astronaut has a mass of 60kg. Calculate the her weight here on earth also her weight on the moon
Answer» EXPLANATION: mass=60kg WEIGHT =mg weight=60×9.8=588N weight on moon=1/6(on EARTH) weight on moon=98N

49.

An astronaut has a mass of 60kg. Calculate the her weight here on earth also her weight on the moon

Answer»

EXPLANATION:

mass=60kg

WEIGHT =mg

weight=60×9.8=588N

weight on moon=1/6(on EARTH)

weight on moon=98N

Discussion

50.	Explain the experiments to find out the focal length of a convex lens . The focal length of a convex lens is 100 cm find its power
Answer» Answer: *Power* = 0.01 Dioptre Explanation: *There* *are* *MANY* *methods* *like* *U-V* *METHOD* in an *EXPERIMENT, where* *focal* *length* *can* be *calculated* by *the* *FORMULA* f = *uv/(u+v) given:- Focal* *Length (f) = 100cm Power* (P) = 1/f = 1/*100* = 0.01 D

50.

Explain the experiments to find out the focal length of a convex lens . The focal length of a convex lens is 100 cm find its power

Answer»

Answer:

Power = 0.01 Dioptre

Explanation:

There are MANY methods like U-V METHOD in an EXPERIMENT, where focal length can be calculated by the FORMULA f = uv/(u+v)

given:-

Focal Length (f) = 100cm

Power (P) = 1/f = 1/100 = 0.01 D

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Write the principle of conservation of mechanical energy .​

Give examples for good solid conductors and liquid conductors? ​

What is the maximum torque on a square loop of 1000 turns in a field ofintensity of 1 Tesla. The loop has 10 cm sides and carries 3A. What ismagnetic moment of loop?

Show that the total linear momentum of a system of particles is equal to the product of the total mass of the system and the velocity of its centre of mass.​

पृथ्वी की बात पति गति का उदाहरण है फिजिकल साइंस बताइए​

Draw raw digram of lens makers formula​

4 MeV alpha particle acrossthe 3o MeV potential barrierinside the nucleus due to​

state wether the following stetment is true or false . Earth moves round the sun with uniform velocity​

The distance from the point where the object was at rest to the first point

Write an expression for terminal velocity and explain the terms

Select the ODD one from the following 1) km2) cm3) hm4) dam

How many electrons are transferred by a current of 1.2 A flowing for 16 minutes and 40 seconds​

A stone is thrown vertically upward with an initial velocity of 40 m/s. Taking g = 10 m/s², find the maximum height reached by the stone. What is the net displacement and the total distance covered by the stone when it falls back to the ground ?​

QUESTION :

GiveN :

To FiNd :

ANswer :

SolutioN :

Who invented free electron theory in metals​

Image by arrangement of two concave lense

Father of genetics?? anu she is very lucky to have u bye tc ttyl​

Write about conductivity ofliquids​

it is found that when certain amount of gas is heated it's volume increase by 50% and pressure decrease by 60%.if the initial temperature was -15​

Obtain the expression for capacitance for a parallel plate capacitor.​

there are 5 photo of answer

please OPEN above photo.

I HOPE this answer is HELPFUL.

Draw the distance time graph for decreasing speed and displacement time graph for decreasing velocity

Similar poles of two magnets repel one another true or false

C. Say if the statements are true or false.4. Solids expand slightly on heating. ​

Which statement describe completely "a body at rest​

Define the followingA) electric field B) electric potential​

Electric field is defined as the electric force per unit CHARGE. The direction of the field is taken to be the direction of the force it would exert on a positive TEST charge. The electric field is radially outward from a positive charge and radially in TOWARD a negative point charge.

The electric potential is the amount of work energy needed to move a unit of electric charge from a reference point to the specific point in an electric field with NEGLIGIBLE acceleration of the test charge to avoid producing kinetic energy or RADIATION by test charge

What is the speed of light in i)air ii)water​

MULTIPLE CHOICE QUESTIONS1. Which statement describes completely “a body at rest?(a) when a body does not change its position with time.(b) when a body does not change its position with respect to the sur(c) when a body does not change its position with respect to the tim(d) none of the above.​

B. Fill in the blanks.4. The state of matter that has differenttextures is​

NO SUIT(d) between A and B48. Three charges +Q ench are placed at the corners A,B and C of an equilateral triangle. At thecircumcentre 0, the electric field strength is131 3Q48. r(a) zero(b)01(d)4πε η4TE25​

(14)What is an electric line of force. State its characteristics.​

If the angle of incidence on the prism is greater than that for minimum deviation, the position of the prism is called :1 slanting position2 normal position3 stationary position4 orthonormal position

Binding energy of the satellite is equal to -TE -KE -PE TE

Reason for exceccive current in electrical circuit

What is the importance of metals?​

What is the corrosion? Do gold ornaments corrode? Justify.Guys ans. my previous question also please​

Accident on the highway is caused by tyre failure, and most are due to a tyre puncture. why that happens.

(13)Define electric field. Hence Obtain an expression for the electric field intensity due to a pointcharge in a material medium.​

Answer both questions​

A partical moves 3m north, then 4m east and finally 6m South, calculate the distance traveled and the displacement​

Understanding the TextAnswer these questions briefly.Why did Old Major wish to hold a meeting at night?b: What was his standing among the other animals of the farm?What did he wish to talk about?1. a.​

Write the three laws given by Kepler with the help of diagram... ​

Derive the equation for equivalent resistance for 3 resistances in series and parallel​

What is called mechanical energy​

Answer:

hey MATE ...here is the answer

Explanation:

Mechanical energy can be either kinetic energy (energy of motion) or potential energy (STORED energy of POSITION).

particles of charge +75,+48 & -85 c are placed in a line. The center one is0.35 m from each of the others.Calculate the net force on each charge due to other two?​

Can speed be uniform while velocity non-uniform? Explain.​

→ A stone is thrown vertically upward with an initial velocity of 40 m/s. Taking g = 10 m/s², find the maximum height reached by the stone. What is the net displacement and the total distance covered by the stone when it falls back to the ground ?​

Given:-

To Find:-

Equation USED:-

SOLUTION:-

Give the relation between principal and molar specific heat?​

An astronaut has a mass of 60kg. Calculate the her weight here on earth also her weight on the moon

Explain the experiments to find out the focal length of a convex lens . The focal length of a convex lens is 100 cm find its power

Power = 0.01 Dioptre

There are MANY methods like U-V METHOD in an EXPERIMENT, where focal length can be calculated by the FORMULA f = uv/(u+v)

given:-

Focal Length (f) = 100cm

Power (P) = 1/f = 1/100 = 0.01 D

Write the principle of conservation of mechanical energy .

Give examples for good solid conductors and liquid conductors?

Show that the total linear momentum of a system of particles is equal to the product of the total mass of the system and the velocity of its centre of mass.

पृथ्वी की बात पति गति का उदाहरण है फिजिकल साइंस बताइए

Draw raw digram of lens makers formula

4 MeV alpha particle acrossthe 3o MeV potential barrierinside the nucleus due to

state wether the following stetment is true or false . Earth moves round the sun with uniform velocity

How many electrons are transferred by a current of 1.2 A flowing for 16 minutes and 40 seconds

A stone is thrown vertically upward with an initial velocity of 40 m/s. Taking g = 10 m/s², find the maximum height reached by the stone. What is the net displacement and the total distance covered by the stone when it falls back to the ground ?

Who invented free electron theory in metals

Father of genetics?? anu she is very lucky to have u bye tc ttyl

Write about conductivity ofliquids

it is found that when certain amount of gas is heated it's volume increase by 50% and pressure decrease by 60%.if the initial temperature was -15

Obtain the expression for capacitance for a parallel plate capacitor.

C. Say if the statements are true or false.4. Solids expand slightly on heating.

Which statement describe completely "a body at rest

Define the followingA) electric field B) electric potential

What is the speed of light in i)air ii)water

MULTIPLE CHOICE QUESTIONS1. Which statement describes completely “a body at rest?(a) when a body does not change its position with time.(b) when a body does not change its position with respect to the sur(c) when a body does not change its position with respect to the tim(d) none of the above.

B. Fill in the blanks.4. The state of matter that has differenttextures is

NO SUIT(d) between A and B48. Three charges +Q ench are placed at the corners A,B and C of an equilateral triangle. At thecircumcentre 0, the electric field strength is131 3Q48. r(a) zero(b)01(d)4πε η4TE25

(14)What is an electric line of force. State its characteristics.

What is the importance of metals?

What is the corrosion? Do gold ornaments corrode? Justify.Guys ans. my previous question also please

(13)Define electric field. Hence Obtain an expression for the electric field intensity due to a pointcharge in a material medium.

Answer both questions

A partical moves 3m north, then 4m east and finally 6m South, calculate the distance traveled and the displacement

Understanding the TextAnswer these questions briefly.Why did Old Major wish to hold a meeting at night?b: What was his standing among the other animals of the farm?What did he wish to talk about?1. a.

Write the three laws given by Kepler with the help of diagram...

Derive the equation for equivalent resistance for 3 resistances in series and parallel

What is called mechanical energy

particles of charge +75,+48 & -85 c are placed in a line. The center one is0.35 m from each of the others.Calculate the net force on each charge due to other two?

Can speed be uniform while velocity non-uniform? Explain.

→ A stone is thrown vertically upward with an initial velocity of 40 m/s. Taking g = 10 m/s², find the maximum height reached by the stone. What is the net displacement and the total distance covered by the stone when it falls back to the ground ?

Give the relation between principal and molar specific heat?