67486 + Interview Questions in Secondary School in Physics

1.	Why the rate of loss of thermal energy through the walls of the flask by radiation is very low
Answer» Answer: Vacuum Flasks work by insulation. So, HEAT cannot enter or leave through conduction. ... The plastic case of theflask is not a GOOD conductor of heat, THUS REDUCING heat loss.

1.

Why the rate of loss of thermal energy through the walls of the flask by radiation is very low

Answer»

Answer:

Vacuum Flasks work by insulation. So, HEAT cannot enter or leave through conduction. ... The plastic case of theflask is not a GOOD conductor of heat, THUS REDUCING heat loss.

Discussion

2.	A plane mirror is placed horizontally on level ground at a distance of 60 m from the foot of a tower. The top of the tower and its image in the mirror subtend an angle of 90o at the eye. Calculate the height of the tower.
Answer» Answer: Since the TOP of the tower and its image in the MIRROR subtends at the eye makes an angle of 90 o , the other TWO angles at the beam and mirror interface will be 45 o each. Hence we have tan45 o = OY XY ⟹1= 60 XY ⟹XY=60m

2.

A plane mirror is placed horizontally on level ground at a distance of 60 m from the foot of a tower. The top of the tower and its image in the mirror subtend an angle of 90o at the eye. Calculate the height of the tower.

Answer»

Answer:

Since the TOP of the tower and its image in the MIRROR subtends at the eye makes an angle of 90

o

, the other TWO angles at the beam and mirror interface will be 45

o

each.

Hence we have

tan45

o

=

OY

XY

⟹1=

60

XY

⟹XY=60m

Discussion

3.	in a conical pendulum a string of length 127 cm is rigid support and Carries a mass of 150 gm at it's free end.if the mass is revolved in a horizontal circle of radius 0.2 m around a vertical axis. calculate tension in the string. ( g = 9.8 m/s^2)
Answer» ANSWER: = 1.5N I HOPE IT'S HELPFUL ✌✌ THANK YOU

3.

in a conical pendulum a string of length 127 cm is rigid support and Carries a mass of 150 gm at it's free end.if the mass is revolved in a horizontal circle of radius 0.2 m around a vertical axis. calculate tension in the string. ( g = 9.8 m/s^2)

Answer»

ANSWER:

= 1.5N

I HOPE IT'S HELPFUL ✌✌

THANK YOU

Discussion

4.	The components essential for our body are called
Answer» Answer: the COMPONENTS ESSENTIAL for our body are CALLED nutrients. PLEASE mark it as BRAINLIEST answer

4.

The components essential for our body are called

Answer»

Answer:

the COMPONENTS ESSENTIAL for our body are CALLED nutrients.

PLEASE mark it as BRAINLIEST answer

Discussion

5.	An object of height 6cm is placed at a distance of 10 cm in front of a concavelensof focal lenge 5 cm
Answer» Answer: An object of height 6 cm is placed perpendicular to the principal axis of a CONCAVE lens of FOCAL length 5 cm. USE lens FORMULA to determine the position, size and nature of the image if the distance of the object from the lens is 10 cm

5.

An object of height 6cm is placed at a distance of 10 cm in front of a concavelensof focal lenge 5 cm

Answer»

Answer:

An object of height 6 cm is placed perpendicular to the principal axis of a CONCAVE lens of FOCAL length 5 cm. USE lens FORMULA to determine the position, size and nature of the image if the distance of the object from the lens is 10 cm

Discussion

6.	② Threshold frequency ofa photo electric cell as 5.oox104 HZ. Il a light say of 6 x 10'4 Hz frequency dieincised onitthem17 whether electron will emit or not.is what will happened? If intensity of incident Lightis increase.mis what will happened? It frequency of incidentof incidentMayis increase to 7x1014 Haz
Answer» ANSWER: GIVEN, (In AIR) VELOCITY V=340m/s Frequency f=20,000Hz Wavelegth λ=? V=f.λ λ=FV=20,000340=0.017Hz Also, Given (in WATER) Velocity, V=1480m/s Frequencyf=20,000Hz wavelength, λ=? V=F.λ λ=FV=20,0001480=0.074Hz

6.

② Threshold frequency ofa photo electric cell as 5.oox104 HZ. Il a light say of 6 x 10'4 Hz frequency dieincised onitthem17 whether electron will emit or not.is what will happened? If intensity of incident Lightis increase.mis what will happened? It frequency of incidentof incidentMayis increase to 7x1014 Haz

Answer»

ANSWER:

GIVEN, (In AIR)

VELOCITY V=340m/s

Frequency f=20,000Hz

Wavelegth λ=?

V=f.λ

λ=FV=20,000340=0.017Hz

Also, Given (in WATER)

Velocity, V=1480m/s

Frequencyf=20,000Hz

wavelength, λ=?

V=F.λ

λ=FV=20,0001480=0.074Hz

Discussion

7.	A copper vesed of mass 20081 1 48 wocher calculate theamount reeded to raise the tembeleof water from 15°C to 85°
Answer» Answer: skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk the DAY of school ma bhi pgl H KYA tara tari k skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk kskskskskkskskskskskskskskskkskskskskskskskkskskskskskskkskskskskskkskskskskskskskskkskskskskskskskkskskskskksksksk skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk kskskskskkskskskskskskskskskkskskskskskskskkskskskskskskkskskskskskkskskskskskskskskkskskskskskskskkskskskskksksksk skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk kskskskskkskskskskskskskskskkskskskskskskskkskskskskskskkskskskskskkskskskskskskskskkskskskskskskskkskskskskksksksk skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk kskskskskkskskskskskskskskskkskskskskskskskkskskskskskskkskskskskskkskskskskskskskskkskskskskskskskkskskskskksksksk skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk kskskskskkskskskskskskskskskkskskskskskskskkskskskskskskkskskskskskkskskskskskskskskkskskskskskskskkskskskskksksksk skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk kskskskskkskskskskskskskskskkskskskskskskskkskskskskskskkskskskskskkskskskskskskskskkskskskskskskskkskskskskksksksk skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk kskskskskkskskskskskskskskskkskskskskskskskkskskskskskskkskskskskskkskskskskskskskskkskskskskskskskkskskskskksksksk

7.

A copper vesed of mass 20081 1 48 wocher calculate theamount reeded to raise the tembeleof water from 15°C to 85°

Answer»

Answer:

skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk the DAY of school ma bhi pgl H KYA tara tari k skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk kskskskskkskskskskskskskskskkskskskskskskskkskskskskskskkskskskskskkskskskskskskskskkskskskskskskskkskskskskksksksk skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk kskskskskkskskskskskskskskskkskskskskskskskkskskskskskskkskskskskskkskskskskskskskskkskskskskskskskkskskskskksksksk skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk kskskskskkskskskskskskskskskkskskskskskskskkskskskskskskkskskskskskkskskskskskskskskkskskskskskskskkskskskskksksksk skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk kskskskskkskskskskskskskskskkskskskskskskskkskskskskskskkskskskskskkskskskskskskskskkskskskskskskskkskskskskksksksk skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk kskskskskkskskskskskskskskskkskskskskskskskkskskskskskskkskskskskskkskskskskskskskskkskskskskskskskkskskskskksksksk skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk kskskskskkskskskskskskskskskkskskskskskskskkskskskskskskkskskskskskkskskskskskskskskkskskskskskskskkskskskskksksksk skskskskskskskskkskskskskskskdkdkkskskdkdkdkskkskskskskskskkskskskskkskskskksk kskskskskkskskskskskskskskskkskskskskskskskkskskskskskskkskskskskskkskskskskskskskskkskskskskskskskkskskskskksksksk

Discussion

8.	A)Defineisothermalprocessandcalculateworkdoneinanisothermalprocess.b)Asystemisprovidedwith200calofheatandtheworkdonebythesystemonthesurroundingsis40joule.Calculatethechangeininternalenergy.
Answer» एचडीydtstsstsrztxinobuhugycrs arcubpjk

Discussion

9.	Who discovered general relativity Theory ?
Answer» ALBERT Einstein discovered the THEORY of relativity and published it in 1915.

Discussion

10.	show the diagram of magnetic field lines for current carrying solenoid . what will be the change in magnetic field if soft Iron Rod is is played inside a solenoid ?
Answer» ANSWER: this is your answer of show the DIAGRAM of magnetic FIELD lines for CURRENT carrying solenoid . what will be the change in magnetic field if SOFT Iron Rod is is played inside a solenoid

10.

show the diagram of magnetic field lines for current carrying solenoid . what will be the change in magnetic field if soft Iron Rod is is played inside a solenoid ?

Answer»

ANSWER:

this is your answer of show the DIAGRAM of magnetic FIELD lines for CURRENT carrying solenoid . what will be the change in magnetic field if SOFT Iron Rod is is played inside a solenoid

Discussion

11.	A plane is travelling eastward at an airspace of 450km/h but a 80km/h wind is blowing Southward. What is the direction and speed of the plane relative to the ground
Answer» ANSWER: Your answer of this is 36000

11.

A plane is travelling eastward at an airspace of 450km/h but a 80km/h wind is blowing Southward. What is the direction and speed of the plane relative to the ground

Answer»

ANSWER:

Your answer of this is 36000

Discussion

12.	Q Derivetime period for simple harmoni♡ssilator
Answer» ANSWER: The PERIOD T and frequency F of a SIMPLE harmonic oscillator are given by T=2π√mk T = 2 π m k and f=12π√km f = 1 2 π k m , where m is the mass of the system.

12.

Q Derivetime period for simple harmoni♡ssilator

Answer»

ANSWER:

The PERIOD T and frequency F of a SIMPLE harmonic oscillator are given by T=2π√mk T = 2 π m k and f=12π√km f = 1 2 π k m , where m is the mass of the system.

Discussion

13.	Iv)The force of friction acting on the rope -A) 20 NB) 60 NC) 40 ND) 50 N
Answer» Answer: I think the question is incomplete . anyway . here is some information . The pulling force that acts ALONG a stretched flexible connector, such as a ROPE or cable, is called tension, T. When a rope supports the weight of an object that is at rest, the tension in the rope is EQUAL to the weight of the object: T = mg. . hope it's HELPFUL

13.

Iv)The force of friction acting on the rope -A) 20 NB) 60 NC) 40 ND) 50 N

Answer»

Answer:

I think the question is incomplete

.

anyway

.

here is some information

.

The pulling force that acts ALONG a stretched flexible connector, such as a ROPE or cable, is called tension, T. When a rope supports the weight of an object that is at rest, the tension in the rope is EQUAL to the weight of the object: T = mg.

.

hope it's HELPFUL

Discussion

14.	⇒ During greenhouse effect, are infrared radiations of shorter wavelength or infrared radiations of longer wavelength radiated by earth’s surface?
Answer» WATER vapor , carbon dioxide , methane , and other trase GASES in Earth's atmosphere absorb the LONGER wavelengths of outgoing infrared RADIATION from Earth's surface . These gases than emit the infrared radiation in all directions , both OUTWARD toward space and downward toward Earth .

Discussion

15.	State the advantages and disadvantages of cells in parallel.
Answer» Therefore each COMPONENT in the circuit gets the same AMOUNT of VOLTAGE I

Discussion

16.	Definition of total lunar eclipse
Answer» The content-total lunar eclipse translated from ENGLISH TOOK place on 4 April 2015. It is the FIRST of TWO total lunar eclipses in 2015, and the third in a tetrad. Another eclipse in Tetrad 15 April 2014, 8 8 October 2014 and 28 September 2015. It is the 30th member of Chandra Saras 132, and the first total eclipse. The last event was the lunar eclipse of March 1997, which was slightly partial. $\\ \\ \\ \\ \sf \colorbox{gold} {\red(ANSWER ᵇʸ ⁿᵃʷᵃᵇ⁰⁰⁰⁸} \\ and\\ \sf \colorbox{lightgreen} {\red❤ANSWER ᵇʸ ᶠˡⁱʳᵗʸ ᵇᵒʸ}$

16.

Definition of total lunar eclipse

Answer»

The content-total lunar eclipse translated from ENGLISH TOOK place on 4 April 2015. It is the FIRST of TWO total lunar eclipses in 2015, and the third in a tetrad. Another eclipse in Tetrad 15 April 2014, 8 8 October 2014 and 28 September 2015. It is the 30th member of Chandra Saras 132, and the first total eclipse. The last event was the lunar eclipse of March 1997, which was slightly partial.

$\\ \\ \\ \\ \sf \colorbox{gold} {\red(ANSWER ᵇʸ ⁿᵃʷᵃᵇ⁰⁰⁰⁸} \\ and\\ \sf \colorbox{lightgreen} {\red❤ANSWER ᵇʸ ᶠˡⁱʳᵗʸ ᵇᵒʸ}$

Discussion

17.	What is super assymetry?
Answer» Answer: Explanation: The concept of super asymmetry is related to super symmetry string theory In PARTICLE physics supersymmetry is a PROPOSED type of space time symmetry that relates two BASIC classes of elementary particles bosons which have an INTEGER valued spin and FERMIONS which have a half integer spin

17.

What is super assymetry?

Answer»

Answer:

Explanation:

The concept of super asymmetry is related to super symmetry string theory In PARTICLE physics supersymmetry is a PROPOSED type of space time symmetry that relates two BASIC classes of elementary particles bosons which have an INTEGER valued spin and FERMIONS which have a half integer spin

Discussion

18.	The tension is more on the side having the mass ofA) 4 kg B) 2 kgC) same on bothD) None
Answer» Answer: 4 kg Explanation:

18.

The tension is more on the side having the mass ofA) 4 kg B) 2 kgC) same on bothD) None

Answer»

Answer:

4 kg

Explanation:

Discussion

19.	What is perfectly black body
Answer» Explanation: Blackbody, in physics, a surface that absorbs all radiant energy FALLING on it. The TERM arises because incident visible light will be absorbed rather than reflected, and THEREFORE the surface will appear black. The concept of such a perfect absorber of energy is extremely useful in the study of radiation PHENOMENA

19.

What is perfectly black body

Answer»

Explanation:

Blackbody, in physics, a surface that absorbs all radiant energy FALLING on it. The TERM arises because incident visible light will be absorbed rather than reflected, and THEREFORE the surface will appear black. The concept of such a perfect absorber of energy is extremely useful in the study of radiation PHENOMENA

Discussion

20.	Hey guyswrite five ways to reduce stress. [5 marks]only well explained answers neededdon't spamhave an astronomical day ahead:)
Answer» ANSWER: ᴅᴇᴀʀ ʜᴇʀᴇ ᴜʀ ᴀɴsᴡᴇʀ ~ ᴅᴏ sᴏᴍᴇ ᴇxᴇʀᴄɪsᴇ ᴅᴇᴀʀ ʟɪsᴛᴇɴ ᴛᴏ ᴜʀ ғᴀᴠ ᴍᴜsɪᴄ ᴛᴀᴋᴇ sᴏᴍᴇ ᴘᴇᴀᴄᴇ ғᴏʀ ᴜʀ ᴍɪɴᴅ ᴅᴇᴀʀ ᴍᴇᴅɪᴛᴀᴛɪᴏɴ ᴅᴇᴀʀ ʟᴀsᴛʟʏ, ɪғ ᴜ sᴛʀᴇss ᴛᴇʟʟ ɪᴛ ᴠᴛʜ ᴛʜᴇ ᴘᴇʀsᴏɴ ᴜʀ ᴛʀᴜsᴛ ᴏʀ ᴜ ʟᴏᴠ ᴅᴇᴀʀ ɪ ʜᴏᴘᴇ ᴍʏ ᴀɴsᴡᴇʀ ᴡɪʟʟ ʜᴇʟᴘ ᴜ ᴅᴇᴀʀ sᴛᴀʏ ʜᴀᴘᴘʏ ᴅᴇᴀʀ ❤️»ꪑꫀꪶꪶꪮ«❤️

20.

Hey guyswrite five ways to reduce stress. [5 marks]only well explained answers neededdon't spamhave an astronomical day ahead:)

Answer»

ANSWER:

ᴅᴇᴀʀ ʜᴇʀᴇ ᴜʀ ᴀɴsᴡᴇʀ ~

ᴅᴏ sᴏᴍᴇ ᴇxᴇʀᴄɪsᴇ ᴅᴇᴀʀ

ʟɪsᴛᴇɴ ᴛᴏ ᴜʀ ғᴀᴠ ᴍᴜsɪᴄ

ᴛᴀᴋᴇ sᴏᴍᴇ ᴘᴇᴀᴄᴇ ғᴏʀ ᴜʀ ᴍɪɴᴅ ᴅᴇᴀʀ

ᴍᴇᴅɪᴛᴀᴛɪᴏɴ ᴅᴇᴀʀ

ʟᴀsᴛʟʏ, ɪғ ᴜ sᴛʀᴇss ᴛᴇʟʟ ɪᴛ ᴠᴛʜ ᴛʜᴇ ᴘᴇʀsᴏɴ ᴜʀ ᴛʀᴜsᴛ ᴏʀ ᴜ ʟᴏᴠ ᴅᴇᴀʀ

ɪ ʜᴏᴘᴇ ᴍʏ ᴀɴsᴡᴇʀ ᴡɪʟʟ ʜᴇʟᴘ ᴜ ᴅᴇᴀʀ

sᴛᴀʏ ʜᴀᴘᴘʏ ᴅᴇᴀʀ

❤️»ꪑꫀꪶꪶꪮ«❤️

Discussion

21.	What is the only true test of magnets?
Answer» ANSWER: REPULSION is only the TRUE TEST of MAGNET...

21.

What is the only true test of magnets?

Answer»

ANSWER:

REPULSION is only the TRUE TEST of MAGNET...

Discussion

22.	Keplers laws of area
Answer» A LINE that connect a PLANT to the SUN swips equal AREA in equal TIMES.

Discussion

23.	Classify each of the following as a homogeneous or heterogeneous mixture: 1mSoda water, wood, soil, vinegar.
Answer» Answer: SODA water , VINEGAR are HOMOGENEOUS mixture while SOIL and wood are heterogeneous MIXTURES.

23.

Classify each of the following as a homogeneous or heterogeneous mixture: 1mSoda water, wood, soil, vinegar.

Answer»

Answer:

SODA water , VINEGAR are HOMOGENEOUS mixture while SOIL and wood are heterogeneous MIXTURES.

Discussion

24.	A hard-boiled egg is placed on the rim of a container which has a mouth withslightly smaller diameter than the egg. Then the egg is removed, a piece of paper is litand is put in the flask and the egg is place on it as shown, it immediately drops into the flask now. What do you think is the reason for this? Is there a way to get the egg out of the flask?
Answer» ANSWER: HEAT ENERGY. Explanation: HEAT CAUSED THE MOUTH OF THE FLASK TO EXPAND.AND YES.THE EGG CAN GET OUT OF THE FLASK IF WE HEAT THE MOUTH OF THE FLASK.

24.

A hard-boiled egg is placed on the rim of a container which has a mouth withslightly smaller diameter than the egg. Then the egg is removed, a piece of paper is litand is put in the flask and the egg is place on it as shown, it immediately drops into the flask now. What do you think is the reason for this? Is there a way to get the egg out of the flask?

Answer»

ANSWER:

HEAT ENERGY.

Explanation:

HEAT CAUSED THE MOUTH OF THE FLASK TO EXPAND.AND YES.THE EGG CAN GET OUT OF THE FLASK IF WE HEAT THE MOUTH OF THE FLASK.

Discussion

25.	Define types of units and give examples for 3marks
Answer» Explanation: Every unit of TIME is a fundamental unit. Microsecond, millisecond, second, minute, HOUR, day etc are UNITS of time. All these units are fundamental units. Derived units: The units of derived physical quantities are called derived units. Units of AREA, volume, SPEED, density, energy etc are derived units.

25.

Define types of units and give examples for 3marks

Answer»

Explanation:

Every unit of TIME is a fundamental unit. Microsecond, millisecond, second, minute, HOUR, day etc are UNITS of time. All these units are fundamental units. Derived units: The units of derived physical quantities are called derived units. Units of AREA, volume, SPEED, density, energy etc are derived units.

Discussion

26.	The moment of inertia of a disc about an axispassing through its centre and perpendicular toits plane is 20 kg m´2. Determine its moment ofinertia about an axiscoinciding with a tangent perpendicular to itsplane.passing through a point midway between thecentre and a point on the circumference,perpendicular to its plane.
Answer» ANSWER: Explanation: GIVEN, Inertia at center is 20kg−m ^2 Let, Mass of square PLATE, =m Side of square, =a inertia about perpendicular axis at center of square, I z=ma^2/6=20kg-m^2 Apply perpendicular axis THEOREM Iz= Ix+Iy=2Ix (square has same side) Ix=Iz/2=ma^2/12 Edge of square is at distance,a/2 from center Apply parallel axis theorem, I(edge)=Ix+m(a/2)^2 =ma^2/12+m(a/2)^2 =ma^3/3=2×ma^2/6=2Iz 2×20=40kg−m^2 40kg−m^2

26.

The moment of inertia of a disc about an axispassing through its centre and perpendicular toits plane is 20 kg m´2. Determine its moment ofinertia about an axiscoinciding with a tangent perpendicular to itsplane.passing through a point midway between thecentre and a point on the circumference,perpendicular to its plane.

Answer»

ANSWER:

Explanation:

GIVEN,

Inertia at center is 20kg−m ^2

Let,

Mass of square PLATE, =m

Side of square, =a

inertia about perpendicular axis at center of square, I z=ma^2/6=20kg-m^2

Apply perpendicular axis THEOREM

Iz= Ix+Iy=2Ix (square has same side)

Ix=Iz/2=ma^2/12

Edge of square is at distance,a/2 from center

Apply parallel axis theorem, I(edge)=Ix+m(a/2)^2

=ma^2/12+m(a/2)^2

=ma^3/3=2×ma^2/6=2Iz

2×20=40kg−m^2

40kg−m^2

Discussion

27.	Is Strain and Angle are example non- dimensional variables?
Answer» 5 NON dimensional VARIABLES and is strain and RELATIVE density are non dimensional variables.

Discussion

28.	Please answer all the five parts as soon as possible please I will make me brainliest
Answer» ANSWER: A IS CORNEA B IS AQUEOUS HUMOR C IS PUPIL D IS CALIARY BODY

28.

Please answer all the five parts as soon as possible please I will make me brainliest

Answer»

ANSWER:

A IS CORNEA

B IS AQUEOUS HUMOR

C IS PUPIL

D IS CALIARY BODY

Discussion

29.	I Duningice bollel, while in the outer roundsdo the dancers outstreth their arms andLegsWhyarms and
Answer» EXPLANATION: bfhfhrjtkktktjyjybybby

29.

I Duningice bollel, while in the outer roundsdo the dancers outstreth their arms andLegsWhyarms and

Answer»

EXPLANATION:

bfhfhrjtkktktjyjybybby

Discussion

30.	Q1. 1 unit less than -1
Answer» Answer: 0 is the UNIT LESS than -1

30.

Q1. 1 unit less than -1

Answer»

Answer:

0 is the UNIT LESS than -1

Discussion

31.	Stone match the coloum
Answer» ANSWER: PLEASE SEND the PHOTOS of the CHAPTER

31.

Stone match the coloum

Answer»

ANSWER:

PLEASE SEND the PHOTOS of the CHAPTER

Discussion

32.	Assertion: The motion of the centre of mass describes the translational part of the motion. Reason: Translational motion means always straight line motion. *
Answer» ANSWER: I Don't KNOW sorryyyyyyyyyy for this sorryyyyyyy

32.

Assertion: The motion of the centre of mass describes the translational part of the motion. Reason: Translational motion means always straight line motion. *

Answer»

ANSWER:

I Don't KNOW sorryyyyyyyyyy for this sorryyyyyyy

Discussion

33.	State whether following statement is true or false If the relative humidity more than 60 %,we feel that air is humid
Answer» Answer: true ( if relative humidity is more than 60% EXPLANATION: HOPE you like it ❤

33.

State whether following statement is true or false If the relative humidity more than 60 %,we feel that air is humid

Answer»

Answer:

true ( if relative humidity is more than 60%

EXPLANATION:

HOPE you like it ❤

Discussion

34.	If the forced frequency does not match with natural frequency of a body then body vibrates withMinimun amplitudeMaximum amplitudeZero amplitudeAll of the above.
Answer» Answer: MAXIMUM AMPLITUDE Explanation: If the forced frequency does not match with NATURAL frequency of a body then body VIBRATES with Maximum amplitude

34.

If the forced frequency does not match with natural frequency of a body then body vibrates withMinimun amplitudeMaximum amplitudeZero amplitudeAll of the above.

Answer»

Answer:

MAXIMUM AMPLITUDE

Explanation:

If the forced frequency does not match with NATURAL frequency of a body then body VIBRATES with Maximum amplitude

Discussion

35.	Please answer all five parts as soon as possible please I will make him brilliant
Answer» Answer: the answer is GIVEN in the PICTURE HOPE IT HELPS YOU AND PLEASE MAKE ME THE BRAINLIEST

35.

Please answer all five parts as soon as possible please I will make him brilliant

Answer»

Answer:

the answer is GIVEN in the PICTURE

HOPE IT HELPS YOU

AND PLEASE MAKE ME THE BRAINLIEST

Discussion

36.	What is cyclic process
Answer» ANSWER: In a CYCLIC process, the system starts and returns to the same thermodynamic state. The net work involved is the enclosed area on the P-V DIAGRAM. If the cycle goes COUNTERCLOCKWISE, work is done on the system every cycle. ... An example of such a system is a REFRIGERATOR or air conditioner.

36.

What is cyclic process

Answer»

ANSWER:

In a CYCLIC process, the system starts and returns to the same thermodynamic state. The net work involved is the enclosed area on the P-V DIAGRAM. If the cycle goes COUNTERCLOCKWISE, work is done on the system every cycle. ... An example of such a system is a REFRIGERATOR or air conditioner.

Discussion

37.	Relative density of a substance has No unitUnit Kg per cubic metreUnit KgUnit cubic metre
Answer» ANSWER: no UNIT is CORRECT answer.

37.

Relative density of a substance has No unitUnit Kg per cubic metreUnit KgUnit cubic metre

Answer»

ANSWER:

no UNIT is CORRECT answer.

Discussion

38.	. In a game of tug of war, Group A is pulling the rope towards the east with a force of 720 N, and Group B is pulling with a force of 580 N. What will be the resultant force on the rope? Explain with related diagrammatic representation.
Answer» ANSWER: mark me brianlyest Explanation: L DONT KNOW SORRY

38.

. In a game of tug of war, Group A is pulling the rope towards the east with a force of 720 N, and Group B is pulling with a force of 580 N. What will be the resultant force on the rope? Explain with related diagrammatic representation.

Answer»

ANSWER:

mark me brianlyest

Explanation:

L DONT KNOW SORRY

Discussion

39.	Find the value of “m' for which the vectors vec A =(2 hat i +m hat j + hat k ) and vec B =(4 hat i -2 hat j -2 hat k ) m^ * would be perpendicular to each other.
Answer» ANSWER: m=3 here is UR ans 20 CHARACTERS COMPULSORY

39.

Find the value of “m' for which the vectors vec A =(2 hat i +m hat j + hat k ) and vec B =(4 hat i -2 hat j -2 hat k ) m^ * would be perpendicular to each other.

Answer»

ANSWER:

m=3

here is UR ans

20 CHARACTERS COMPULSORY

Discussion

40.	Assertion:Themotionofthecentreofmassdescribesthetranslationalpartofthemotion.Reason:Translationalmotionmeansalwaysstraightlinemotion.
Answer» ANSWER: ccckckcicidididididididdd

40.

Assertion:Themotionofthecentreofmassdescribesthetranslationalpartofthemotion.Reason:Translationalmotionmeansalwaysstraightlinemotion.

Answer»

ANSWER:

ccckckcicidididididididdd

Discussion

41.	Define intensity of magnetisation
Answer» Answer: Intensity of Magnetization represents the extent to which a specimen is MAGNETISED when PLACED in a MAGNETISING field.

41.

Define intensity of magnetisation

Answer»

Answer:

Intensity of Magnetization represents the extent to which a specimen is MAGNETISED when PLACED in a MAGNETISING field.

Discussion

42.	10.Evaporation is the change of state from liquid to vapour by absorbing heat at a particular temperature. This statement is *TrueFalseBoth true and falseNeithe true nor false
Answer» ANSWER: TRUE Explanation: Evaporation is the process by which water changes from a liquid to a GAS or vapor.

42.

10.Evaporation is the change of state from liquid to vapour by absorbing heat at a particular temperature. This statement is *TrueFalseBoth true and falseNeithe true nor false

Answer»

ANSWER:

TRUE

Explanation:

Evaporation is the process by which water changes from a liquid to a GAS or vapor.

Discussion

43.	The solid which does not sublimate is *CamphorIodineSolid carbondioxideIce
Answer» Answer: ice Cream Explanation: camphor, iodine and solid carbon dioxide directly turn GASEOUS from solid. but ice cream FIRST turns liquid

43.

The solid which does not sublimate is *CamphorIodineSolid carbondioxideIce

Answer»

Answer:

ice Cream

Explanation:

camphor, iodine and solid carbon dioxide directly turn GASEOUS from solid. but ice cream FIRST turns liquid

Discussion

44.	DIFFERENT STATES OF STRESSES
Answer» Answer: A general stress state of a point in a SOLID CONSIST of three normal stresses σx, σy, σz and six SHEARING stresses τxy, τyx, τxz, τzx, τyz, and τzy as shown in figure 1. Each of the stresses (or stress COMPONENTS) represents a force per unit area ACTING on the small cube of material.

44.

DIFFERENT STATES OF STRESSES

Answer»

Answer:

A general stress state of a point in a SOLID CONSIST of three normal stresses σx, σy, σz and six SHEARING stresses τxy, τyx, τxz, τzx, τyz, and τzy as shown in figure 1. Each of the stresses (or stress COMPONENTS) represents a force per unit area ACTING on the small cube of material.

Discussion

45.	AE9-P-pov\| \| (4.1.AE-200 - 4.9995х 10-8 8slyšlem at dalm pressure is absorbing25001 of energy.what is the change inilialenergy it D
Answer» Answer: ok Explanation: MARK me brainlaist 3RD birthday mama JI

45.

AE9-P-pov| | (4.1.AE-200 - 4.9995х 10-8 8slyšlem at dalm pressure is absorbing25001 of energy.what is the change inilialenergy it D

Answer»

Answer:

ok

Explanation:

MARK me brainlaist 3RD birthday mama JI

Discussion

46.	What is mean heart attack?
Answer» A heart ATTACK OCCURS when the flow of blood to the heart is blocked. The blockage is most often a BUILDUP of FAT, cholesterol and other substances, which FORM a plaque in the arteries that feed the heart (coronary arteries). Sometimes, a plaque can rupture and form a clot that blocks blood flow !! *Hopes* *this* *helps* uh ♥️

46.

What is mean heart attack?

Answer»

A heart ATTACK OCCURS when the flow of blood to the heart is blocked. The blockage is most often a BUILDUP of FAT, cholesterol and other substances, which FORM a plaque in the arteries that feed the heart (coronary arteries). Sometimes, a plaque can rupture and form a clot that blocks blood flow !!

Hopes this helps uh ♥️

Discussion

47.	9) The nail in the diagram shown below can attract paper clips when the currentsupply is switched on. Greater number of paper clips are attracted when (i) ThreeElectric cells of 1.5 V are used instead of a 9V battery (ii) Insulated copper wire iswrapped around a soft iron core (iii) The number of turns of insulated wirearound the soft iron core are increased (iv) The switch is sometimes kept in 'OFF"Position and sometimes switched'ironnail+BatteryActivateGo to Sett
Answer» ANSWER: nice question Explanation: BUT I DONT KNOW # ANSWER SORRY BRO

47.

9) The nail in the diagram shown below can attract paper clips when the currentsupply is switched on. Greater number of paper clips are attracted when (i) ThreeElectric cells of 1.5 V are used instead of a 9V battery (ii) Insulated copper wire iswrapped around a soft iron core (iii) The number of turns of insulated wirearound the soft iron core are increased (iv) The switch is sometimes kept in 'OFF"Position and sometimes switched'ironnail+BatteryActivateGo to Sett

Answer»

ANSWER:

nice question

Explanation:

BUT I DONT KNOW # ANSWER SORRY BRO

Discussion

48.	LAORDERWeenthem.यदि (Vo) और (V) किसी उपग्रह की चाल तथा पलायन चाल है, तथा सम्बंधित वृतीय पथ की त्रिज्या(R) है तब इनके मध्य सम्बन्ध का सूत्र व्युत्पन्न कीजिये।
Answer» Answer: rtftftgyyguguuhuhuhihih hihijihihuhuh huhububuvyg GET hhhhbbbbdbhdjrdb DE he ebrbr *fjfjcjjcjcjjcjcj* FC *jcjfjjcjj* DC DC *ifjfjcjj I* *fncjjfjcfjcjcjcjjr* *crazy*

48.

LAORDERWeenthem.यदि (Vo) और (V) किसी उपग्रह की चाल तथा पलायन चाल है, तथा सम्बंधित वृतीय पथ की त्रिज्या(R) है तब इनके मध्य सम्बन्ध का सूत्र व्युत्पन्न कीजिये।

Answer»

Answer:

rtftftgyyguguuhuhuhihih hihijihihuhuh huhububuvyg GET hhhhbbbbdbhdjrdb DE he ebrbr fjfjcjjcjcjjcjcj FC jcjfjjcjj DC DC ifjfjcjj I fncjjfjcfjcjcjcjjr crazy

Discussion

49.	The mean free path I' is the average distance covered by a molecule between two successive collisions. What is the mathematical 1 equation of mean free path?
Answer» Answer: Mean free path: The average DISTANCE by can TRAVEL an atom or a molecule without colliding is CALLED "mean free path". ... l=1√2πnd2. Where N is the numer of molecules PER unit volume and d is the diameter of the molecule

49.

The mean free path I' is the average distance covered by a molecule between two successive collisions. What is the mathematical 1 equation of mean free path?

Answer»

Answer:

Mean free path: The average DISTANCE by can TRAVEL an atom or a molecule without colliding is CALLED "mean free path". ... l=1√2πnd2. Where N is the numer of molecules PER unit volume and d is the diameter of the molecule

Discussion

50.	ShowthatdL/dt=τ,whereListheangularmomentumandτisthetorque.
Answer» Answer: Explanation: 4) Amount of ENERGY required to change liquid to gas and VICE versa WITHOUT any change in TEMPERATURE is

50.

ShowthatdL/dt=τ,whereListheangularmomentumandτisthetorque.

Answer»

Answer:

Explanation:

4) Amount of ENERGY required to change liquid to gas and VICE versa WITHOUT any

change in TEMPERATURE is

Discussion

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State the advantages and disadvantages of cells in parallel.

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What is perfectly black body

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What is the only true test of magnets?

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ShowthatdL/dt=τ,whereListheangularmomentumandτisthetorque.