67486 + Interview Questions in Secondary School in Physics

1.	A positively charge glass rod repels a suspended object. What is the charge of the object?
Answer» Answer: Positive charge on object Explanation: When a GLASS ROD is rubbed with silk cloth, it acquires positive charge. By Definition of Charges, like REPEL, unlike attract. So as they repel each other, they are LIKELY to have same charge type. THUS both positive charge

1.

A positively charge glass rod repels a suspended object. What is the charge of the object?

Answer»

Answer:

Positive charge on object

Explanation:

When a GLASS ROD is rubbed with silk cloth, it acquires positive charge. By Definition of Charges, like REPEL, unlike attract.

So as they repel each other, they are LIKELY to have same charge type. THUS both positive charge

Discussion

2.	derived an expression of magnitude and direction of resultant to vectors using parallelogram of vector
Answer» Answer: In a "magic SQUARE", the sum of the numbers in each ROW, in each COLUMN and ALONG the diagonals is the same. Is this a magic square? 9 2 11 5 15 3. 7 = 4 9 2 (Along the first row + 11 11 11 11 1 6j 11 A 2 ..

2.

derived an expression of magnitude and direction of resultant to vectors using parallelogram of vector

Answer»

Answer:

In a "magic SQUARE", the sum of the numbers in each ROW, in each COLUMN and ALONG

the diagonals is the same. Is this a magic square?

9

2

11

5

15

3.

7

=

4 9 2

(Along the first row

+

11 11 11

11

1

6j

11

A

2

..

Discussion

3.	Resistor of 1 ohm 100 ohm are arranged in parallel resultant resistance will be
Answer» GIVEN is 2 resistors, R₁ = 1 Ω R₂ = 100 Ω If R₁ & R₂ are in PARALLEL, The RESULTANT Resistance will be: R = 1/R₁+1/R₂ R = (1/1) + (1/100) R = 1+1/100 R = (100+1)/100 R = 101/100 Ω R = 1.01 Ω The Resultant Resistance will be 1.01 Ω. I hope this helps.

3.

Resistor of 1 ohm 100 ohm are arranged in parallel resultant resistance will be

Answer»

GIVEN is 2 resistors,

R₁ = 1 Ω

R₂ = 100 Ω

If R₁ & R₂ are in PARALLEL, The RESULTANT Resistance will be:

R = 1/R₁+1/R₂

R = (1/1) + (1/100)

R = 1+1/100

R = (100+1)/100

R = 101/100 Ω

R = 1.01 Ω

The Resultant Resistance will be 1.01 Ω.

I hope this helps.

Discussion

4.	⠀→ 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» Answer: Maximum height attained by the stone = 80m NET DISPLACEMENT = 0 m Total Distance covered by stone = 160 m Explanation: <U>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 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).

4.

⠀→ 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»

Answer:

Maximum height attained by the stone = 80m
NET DISPLACEMENT = 0 m
Total Distance covered by stone = 160 m

Explanation:

<U>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

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

5.	(8)State the four fundamental laws in geometrical optics.
Answer» Answer: Law of rectilinear propagation: According to the law of rectilinear propagation, the light will travel in a STRAIGHT LINE in the region of constant refractive index. Law of REFLECTION: The law of reflection STATES that when a ray of light gets reflected, the angle of reflection will be equal to the angle of incidence. The incident ray reflected ray and the normal are on the same plane. Law of refraction: The law of refraction is ALSO known as Snell’s law. When a ray of light is refracted at the interface, the incident ray, refracted ray and the normal will are on the same plane. The sine of the angle of refraction is proportional to the angle of incidence.

5.

(8)State the four fundamental laws in geometrical optics.

Answer»

Answer:

Law of rectilinear propagation: According to the law of rectilinear propagation, the light will travel in a STRAIGHT LINE in the region of constant refractive index.

Law of REFLECTION: The law of reflection STATES that when a ray of light gets reflected, the angle of reflection will be equal to the angle of incidence. The incident ray reflected ray and the normal are on the same plane.

Law of refraction: The law of refraction is ALSO known as Snell’s law. When a ray of light is refracted at the interface, the incident ray, refracted ray and the normal will are on the same plane. The sine of the angle of refraction is proportional to the angle of incidence.

Discussion

6.	List at least 3 reasons to support the idea that sound in a wave
Answer» Explanation: sound has a FREQUENCY if you hear closely that the sound on things become higher when thing get far from you than sound of the things get SMALLER this mention that sound is a wave in wave the sound is smaller or larger. you know you swim in water and air is on opposite you need force to do as same in sound if object is far from means you then wave of sound get smaller 2 reason,if sound is not wave they cannot travel any SUBSTANCE sound can travel through air, water,LAND but not in space in space there is no air only vacuum, 3 reason wave are vibration sound is also a vibration so we CONCLUDE that sound is a wave because sound is a mechanical wave they vibrate through substance wave also vibrates

6.

List at least 3 reasons to support the idea that sound in a wave

Answer»

Explanation:

sound has a FREQUENCY if you hear closely that the sound on things become higher when thing get far from you than sound of the things get SMALLER this mention that sound is a wave in wave the sound is smaller or larger.

you know you swim in water and air is on opposite you need force to do as same in sound if object is far from means you then wave of sound get smaller

2 reason,if sound is not wave they cannot travel any SUBSTANCE sound can travel through air, water,LAND but not in space in space there is no air only vacuum,

3 reason wave are vibration sound is also a vibration so we CONCLUDE that sound is a wave because sound is a mechanical wave they vibrate through substance wave also vibrates

Discussion

7.	If your weight is the force created by gravity on your body, what is the reaction force?
Answer» The answer is: Whatever the object is resting on is exerting a REACTION force that is equal in magnitude but OPPOSITE in direction to the force of gravity. If the object in not in equilibrium, then the reaction is the acceleration of the object in direction of the force of gravity. *Hope* *it's* *HELP* *you* *dear.*

7.

If your weight is the force created by gravity on your body, what is the reaction force?

Answer»

The answer is:

Whatever the object is resting on is exerting a REACTION force that is equal in magnitude but OPPOSITE in direction to the force of gravity. If the object in not in equilibrium, then the reaction is the acceleration of the object in direction of the force of gravity.

Hope it's HELP you dear.

Discussion

8.	How to Derive this formula? (Don't Spam Please)
Answer» Answer: by conservation of.momentum and kinetic energy is completely elastic collision of two PARTICLE in 2 dimensional space. u REPRESENTS INITIAL velocities and V final VELOCITY of first particle

8.

How to Derive this formula? (Don't Spam Please)

Answer»

Answer:

by conservation of.momentum and kinetic energy is completely elastic collision of two PARTICLE in 2 dimensional space. u REPRESENTS INITIAL velocities and V final VELOCITY of first particle

Discussion

9.	Is easier to pull a land roller then pushing
Answer» Explanation: is easy to pull a roller than to push it because while pulling we can see TWO COMPONENTS of vertical forces as, ... The NORMAL FORCE ACTING on the roller is increased. Then frictional force acting on the roller is increased. So the push is difficult. Answer: soil

9.

Is easier to pull a land roller then pushing

Answer»

Explanation:

is easy to pull a roller than to push it because while pulling we can see TWO COMPONENTS of vertical forces as, ... The NORMAL FORCE ACTING on the roller is increased. Then frictional force acting on the roller is increased. So the push is difficult.

Answer:

soil

Discussion

10.	Draw well labelled ray diagram of deviation through prism
Answer» ANSWER: is in PICS Explanation: hope it HELPS U PLEASE mark my answer brainlist

10.

Draw well labelled ray diagram of deviation through prism

Answer»

ANSWER:

is in PICS

Explanation:

hope it HELPS U

PLEASE mark my answer brainlist

Discussion

11.	Why should the resistance of an ammeter be very small.
Answer» Answer: The RESISTANCE of an ammeter should be very small so that it MAY not CHANGE the value of the current FLOWING in the circuit. (b) The resistance of a VOLTMETER should be very large so that it takes a negligible current from the current.

11.

Why should the resistance of an ammeter be very small.

Answer»

Answer:

The RESISTANCE of an ammeter should be very small so that it MAY not CHANGE the value of the current FLOWING in the circuit. (b) The resistance of a VOLTMETER should be very large so that it takes a negligible current from the current.

Discussion

12.	What is the multiplicationof scalar with vector
Answer» Answer: I HOPE it was HELPFUL PLEASE make my answer as brilliantest answer Explanation: PROPERTIES of Scalar Multiplication The MAGNITUDE of the scaled vector is equal to the absolute value of the scalar times the magnitude of the vector. ‖cv‖=\|c\|v

12.

What is the multiplicationof scalar with vector

Answer»

Answer:

I HOPE it was HELPFUL

PLEASE make my answer as brilliantest answer

Explanation:

PROPERTIES of Scalar Multiplication

The MAGNITUDE of the scaled vector is equal to the absolute value of the scalar times the magnitude of the vector. ‖cv‖=|c|v

Discussion

13.	Good conductor of heat?
Answer» EXPLANATION: copper,FERRUM ETC is good CONDUCTOR of HEAT

13.

Good conductor of heat?

Answer»

EXPLANATION:

copper,FERRUM ETC is good CONDUCTOR of HEAT

Discussion

14.	Photocell is called electric eyeWhen light is incident on some semiconductor
Answer» Answer: when light is incident on some semiconductor its ELECTRIC resistance is reduced I think the question is of assertion reason So both STATEMENT are CORRECT but is not correct explanation of FIRST one

14.

Photocell is called electric eyeWhen light is incident on some semiconductor

Answer»

Answer:

when light is incident on some semiconductor its ELECTRIC resistance is reduced

I think the question is of assertion reason

So both STATEMENT are CORRECT but is not correct explanation of FIRST one

Discussion

15.	Which system covers most of the apace in rocket
Answer» $\huge\green{\mid{\fbox{{คภรฬєг⤵}}\mid}}$ The SPACE Shuttle thermal protection system (TPS) is the BARRIER that PROTECTED the Space Shuttle ORBITER during the searing 1,650 °C (3,000 °F) heat of atmospheric reentry. $\huge\fbox\red{hσpє}\huge\fbox\pink{ít}\fbox\green{hєlp}\huge\fbox\blue{yóû}$ $\huge\fbox{\red{\underline{mαrk \; mє \; вrαínlíєѕt \; plєαѕє ♥}}}$ $\large\bf{\underline\blue{❥thαnk \; чσu ♥♥}}$

15.

Which system covers most of the apace in rocket

Answer»

$\huge\green{\mid{\fbox{{คภรฬєг⤵}}\mid}}$

The SPACE Shuttle thermal protection system (TPS) is the BARRIER that PROTECTED the Space Shuttle ORBITER during the searing 1,650 °C (3,000 °F) heat of atmospheric reentry.

$\huge\fbox\red{hσpє}\huge\fbox\pink{ít}\fbox\green{hєlp}\huge\fbox\blue{yóû}$

$\huge\fbox{\red{\underline{mαrk \; mє \; вrαínlíєѕt \; plєαѕє ♥}}}$

$\large\bf{\underline\blue{❥thαnk \; чσu ♥♥}}$

Discussion

16.	which of the following represents voltage. a)work done/ current * charge b) work done* time / current c) work done * charge d) workbdone * charge * time
Answer» Explanation: W=VIT, where 'W' is the WORK done, 'V' is the voltage, 'I' is the current and 'T' is the time. SINCE this relation is GIVEN in the options we can say that Work doneCurrent × Time REPRESENTS voltage. So, the correct answer is “Option A”.

16.

which of the following represents voltage. a)work done/ current * charge b) work done* time / current c) work done * charge d) workbdone * charge * time

Answer»

Explanation:

W=VIT, where 'W' is the WORK done, 'V' is the voltage, 'I' is the current and 'T' is the time. SINCE this relation is GIVEN in the options we can say that Work doneCurrent × Time REPRESENTS voltage. So, the correct answer is “Option A”.

Discussion

17.	The scalar product of 2i + 4j+ 5k and 3i + 2J + k=
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.

17.

The scalar product of 2i + 4j+ 5k and 3i + 2J + k=

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

18.	Y=cCe-fp(x)dx is the solution
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.

18.

Y=cCe-fp(x)dx is the solution

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

19.	Define principal specific heat capacity a gases at constant pressure are at constant volume
Answer» Principal Specific Heat of Gas at CONSTANT VOLUME: The quantity of heat required to RAISE the temperature of a unit mass of gas through 1 K (or 1 °C) when its volume is kept constant, is called its principal specific heat at constant volume. It is denoted by cV. Its S.I. unit is J K-1 kg-1.

19.

Define principal specific heat capacity a gases at constant pressure are at constant volume

Answer»

Principal Specific Heat of Gas at CONSTANT VOLUME:

The quantity of heat required to RAISE the temperature of a unit mass of gas through 1 K (or 1 °C) when its volume is kept constant, is called its principal specific heat at constant volume. It is denoted by cV. Its S.I. unit is J K-1 kg-1.

Discussion

20.	(7) What is Ray Optics and Wave Optics?
Answer» RAY OPTICS, is a MODEL of optics that describes light propagation in terms of rays. The ray in geometric optics is an abstraction useful for approximating the paths ALONG which light propagates under certain circumstance. Wave Optics, is the branch of optics that STUDIES interference, diffraction, polarization, and other phenomena for which the ray approximation of geometric optics is not valid. hope it's helpful

20.

(7) What is Ray Optics and Wave Optics?

Answer»

RAY OPTICS, is a MODEL of optics that describes light propagation in terms of rays. The ray in geometric optics is an abstraction useful for approximating the paths ALONG which light propagates under certain circumstance.

Wave Optics, is the branch of optics that STUDIES interference, diffraction, polarization, and other phenomena for which the ray approximation of geometric optics is not valid.

hope it's helpful

Discussion

21.	How can kinematics be applied to everyday life
Answer» $\huge\green{\mid{\fbox{{คภรฬєг⤵}}\mid}}$ For EXAMPLE, in machine components it is COMMON to USE KINEMATICS analysis to determine the (unknown) speed of an object, that is connected to another object moving at a known speed. For example, one MAY wish to determine the linear velocity of a piston connected to a flywheel that is turning at a known speed. $\huge\fbox\red{hσpє}\huge\fbox\pink{ít}\fbox\green{hєlp}\huge\fbox\blue{yóû}$ $\huge\fbox{\red{\underline{mαrk \; mє \; вrαínlíєѕt \; plєαѕє ♥}}}$ $\large\bf{\underline\blue{❥thαnk \; чσu ♥♥}}$

21.

How can kinematics be applied to everyday life

Answer»

$\huge\green{\mid{\fbox{{คภรฬєг⤵}}\mid}}$

For EXAMPLE, in machine components it is COMMON to USE KINEMATICS analysis to determine the (unknown) speed of an object, that is connected to another object moving at a known speed. For example, one MAY wish to determine the linear velocity of a piston connected to a flywheel that is turning at a known speed.

$\huge\fbox\red{hσpє}\huge\fbox\pink{ít}\fbox\green{hєlp}\huge\fbox\blue{yóû}$

$\huge\fbox{\red{\underline{mαrk \; mє \; вrαínlíєѕt \; plєαѕє ♥}}}$

$\large\bf{\underline\blue{❥thαnk \; чσu ♥♥}}$

Discussion

22.	Define the s.i unit of Electrici charge
Answer» Answer: COULOMB, unit of electric CHARGE in the metre-kilogram-second-ampere system, the BASIS of the SI system of physical units. It is abbreviated as C

22.

Define the s.i unit of Electrici charge

Answer»

Answer:

COULOMB, unit of electric CHARGE in the metre-kilogram-second-ampere system, the BASIS of the SI system of physical units. It is abbreviated as C

Discussion

23.	1.Distance between two points (2,3,3) and (8,5,0) is:-(1) 4 (2) 5 (3) 6 (4) 7
Answer» Explanation: 1. Distance between TWO POINTS (2,3,3) and (8,5,0) is:- OPTION 4=7

23.

1.Distance between two points (2,3,3) and (8,5,0) is:-(1) 4 (2) 5 (3) 6 (4) 7

Answer»

Explanation:

1.

Distance between TWO POINTS (2,3,3) and (8,5,0) is:-

OPTION 4=7

Discussion

24.	Work done is product of______and distance moved in the direction of force
Answer» WORK done is PRODUCT of______and distance MOVED in the direction of FORCE Ans :force W = force × displacement

24.

Work done is product of______and distance moved in the direction of force

Answer»

WORK done is PRODUCT of______and distance MOVED in the direction of FORCE

Ans :force

W = force × displacement

Discussion

25.	a ball of mass 200g start moving with acceleration of 10m/s when hit by force which act on it for 0.1 second then find impulsive force
Answer» ANSWER: Your answer in ATTACHMENT ✌️✌️

25.

a ball of mass 200g start moving with acceleration of 10m/s when hit by force which act on it for 0.1 second then find impulsive force

Answer»

ANSWER:

Your answer in ATTACHMENT ✌️✌️

Discussion

26.	(6)Explain nature of light.
Answer» Answer: Light is a transverse, electromagnetic wave that can be seen by the typical human. The wave nature of light was FIRST ILLUSTRATED through EXPERIMENTS on diffraction and interference. LIKE all electromagnetic waves, light can travel through a vacuum. Explanation: here is your answer if you like my answer please follow

26.

(6)Explain nature of light.

Answer»

Answer:

Light is a transverse, electromagnetic wave that can be seen by the typical human. The wave nature of light was FIRST ILLUSTRATED through EXPERIMENTS on diffraction and interference. LIKE all electromagnetic waves, light can travel through a vacuum.

Explanation:

here is your answer if you like my answer please follow

Discussion

27.	What is radioactive waves?
Answer» Radiation is energy that comes from a SOURCE and travels through space at the speed of light. This energy has an electric field and a MAGNETIC field associated with it, and has wave-like PROPERTIES. You could also CALL radiation “electromagnetic waves”.

Discussion

28.	Applications of Transistors?
Answer» ANSWER: Transistors are commonly USED in digital circuits as ELECTRONIC switches which can be EITHER in an "on" or "off" state,both for high power application s such as switched mode power supplies and for low power applications such as logic gates.

28.

Applications of Transistors?

Answer»

ANSWER:

Transistors are commonly USED in digital circuits as ELECTRONIC switches which can be EITHER in an "on" or "off" state,both for high power application s such as switched mode power supplies and for low power applications such as logic gates.

Discussion

29.	Find angle between hour hand and minute hand at2:00o clock
Answer» Explanation: The angle between any two consecutive numbers of a clock is 360 ° 12 = 30°. If the minute-hand is at 2 and hour-hand is at 4, angle between them is (2 X 30°) = 60°.

29.

Find angle between hour hand and minute hand at2:00o clock

Answer»

Explanation:

The angle between any two consecutive numbers of a clock is 360 ° 12 = 30°. If the minute-hand is at 2 and hour-hand is at 4, angle between them is (2 X 30°) = 60°.

Discussion

30.	पुरानो सिरक भन्दा नयाँ सिरक तातो हुन्छ किन?
Answer» what is your STD? because I am not SURE what the ANSWER

30.

पुरानो सिरक भन्दा नयाँ सिरक तातो हुन्छ किन?

Answer»

what is your STD?
because I am not SURE what the ANSWER

Discussion

31.	Ay Find amount of change produce due to loss of150 electronas find amount of charge produce due to loss of1 - 1000 electron
Answer» Answer: DEFINE ELECTRIC potential, voltage, and potential DIFFERENCE Define the electron-volt Calculate electric potential and potential difference from potential ENERGY and electric field Describe SYSTEMS in which the electron-volt is a useful unit Apply conservation of energy to electric systems

31.

Ay Find amount of change produce due to loss of150 electronas find amount of charge produce due to loss of1 - 1000 electron

Answer»

Answer:

DEFINE ELECTRIC potential, voltage, and potential DIFFERENCE

Define the electron-volt

Calculate electric potential and potential difference from potential ENERGY and electric field

Describe SYSTEMS in which the electron-volt is a useful unit

Apply conservation of energy to electric systems

Discussion

32.	Write the industrial application of detergent?
Answer» Answer: The SOAP and DETERGENT industry includes COMPANIES that are primarily engaged in manufacturing soap, synthetic organic detergents, inorganic alkaline detergents, and crude and refined GLYCERIN from vegetable oils and animal fats. ... Many of the participants in the industry competed on a global basis. Explanation: MARK ME BRAINLIEST

32.

Write the industrial application of detergent?

Answer»

Answer:

The SOAP and DETERGENT industry includes COMPANIES that are primarily engaged in manufacturing soap, synthetic organic detergents, inorganic alkaline detergents, and crude and refined GLYCERIN from vegetable oils and animal fats. ... Many of the participants in the industry competed on a global basis.

Explanation:

MARK ME BRAINLIEST

Discussion

33.	Explain magnetic fields
Answer» Answer: A magnetic field is a vector field that describes the magnetic influence on moving ELECTRIC charges, electric CURRENTS, and magnetic materials. ... Magnetic fields surround magnetized materials, and are created by electric currents such as those USED in ELECTROMAGNETS, and by electric fields varying in time.

33.

Explain magnetic fields

Answer»

Answer:

A magnetic field is a vector field that describes the magnetic influence on moving ELECTRIC charges, electric CURRENTS, and magnetic materials. ... Magnetic fields surround magnetized materials, and are created by electric currents such as those USED in ELECTROMAGNETS, and by electric fields varying in time.

Discussion

34.	11o.ool 2,203)A force of looN an a Particle at angieof 30° to the vertical find thehorizontal and vertical?
Answer» Answer: HORIZONTAL and vertical COMPONENTS of what, Force? Explanation: Horizontal component of F = F. sin30⁰ = 100 × 1/2 = 50 N Vertical Component of F = F. cos30⁰ = 100 × ROOT3/2 = 50 root3

34.

11o.ool 2,203)A force of looN an a Particle at angieof 30° to the vertical find thehorizontal and vertical?

Answer»

Answer:

HORIZONTAL and vertical COMPONENTS of what, Force?

Explanation:

Horizontal component of F = F. sin30⁰ = 100 × 1/2 = 50 N

Vertical Component of F = F. cos30⁰ = 100 × ROOT3/2 = 50 root3

Discussion

35.	What is the length of the simple pendulum which ticks
Answer» ANSWER: In the given question, word ticks are USED which means the time period of a SIMPLE pendulum is 2 SECOND. The length of the simple pendulum which ticks seconds is 1m.

35.

What is the length of the simple pendulum which ticks

Answer»

ANSWER:

In the given question, word ticks are USED which means the time period of a SIMPLE pendulum is 2 SECOND. The length of the simple pendulum which ticks seconds is 1m.

Discussion

36.	The error in the value of speed of sound calculated by Newton at S.T.P. is about:(a) 14% (b) 15% (c) 16%
Answer» ANSWER: I hope it was helpful Explanation: The speed of SOUND in air at 15 c and 76 cm of Hg is 340m/sec. The speed of sound in air at 30c and 75 cm of Hg will be brainly.in/question/88896?utm_source=android&utm_medium=share&utm_campaign=question

36.

The error in the value of speed of sound calculated by Newton at S.T.P. is about:(a) 14% (b) 15% (c) 16%

Answer»

ANSWER:

I hope it was helpful

Explanation:

The speed of SOUND in air at 15 c and 76 cm of Hg is 340m/sec. The speed of sound in air at 30c and 75 cm of Hg will be

brainly.in/question/88896?utm_source=android&utm_medium=share&utm_campaign=question

Discussion

37.	Find out the odd one and write the reason ?(Volume,Time,Density,Area)
Answer» Answer: DENSITY is odd ONE out Explanation: Because LENGTH , area , volume are related to length while density is also related to MASS.

37.

Find out the odd one and write the reason ?(Volume,Time,Density,Area)

Answer»

Answer:

DENSITY is odd ONE out

Explanation:

Because LENGTH , area , volume are related to length while density is also related to MASS.

Discussion

38.	Convert27 degree and30 degree into kelvin
Answer» Answer: 27 DEGREE CELSIUS = 300 kelvin and 30 degree Celsius = 303 kelvin Explanation: because 0 degree Celsius = 273 Kelvin

38.

Convert27 degree and30 degree into kelvin

Answer»

Answer:

27 DEGREE CELSIUS = 300 kelvin and 30 degree Celsius = 303 kelvin

Explanation:

because 0 degree Celsius = 273 Kelvin

Discussion

39.	Which is an example of a rotational movement ?A) a planet moving around the sunB) a body in a giant wheelC) a spinning topD)a swinging pendulum
Answer» ANSWER: ANSWER (C) a SPINNING TOP

39.

Which is an example of a rotational movement ?A) a planet moving around the sunB) a body in a giant wheelC) a spinning topD)a swinging pendulum

Answer»

ANSWER:

ANSWER (C) a SPINNING TOP

Discussion

40.	Why Einstein Knew That Gravity Must Bend Light ??
Answer» Therefore, EINSTEIN reasoned, it would not only be possible to predict that light rays cannot TRAVEL along a straight path when they're in a GRAVITATIONAL field, but the magnitude of deflection could be calculated simply by KNOWING what the STRENGTH of the gravitational effects in the vicinity of that mass were.

40.

Why Einstein Knew That Gravity Must Bend Light ??

Answer»

Therefore, EINSTEIN reasoned, it would not only be possible to predict that light rays cannot TRAVEL along a straight path when they're in a GRAVITATIONAL field, but the magnitude of deflection could be calculated simply by KNOWING what the STRENGTH of the gravitational effects in the vicinity of that mass were.

Discussion

41.	What is total internal reflection and explain with diagram?
Answer» Answer: TOTAL internal reflection is the optical phenomenon in which the surface of the water in a fish-tank, viewed from below the water level, reflects the UNDERWATER SCENE like a mirror with no LOSS of brightness. Explanation: MARK ME BRAINLIEST

41.

What is total internal reflection and explain with diagram?

Answer»

Answer:

TOTAL internal reflection is the optical phenomenon in which the surface of the water in a fish-tank, viewed from below the water level, reflects the UNDERWATER SCENE like a mirror with no LOSS of brightness.

Explanation:

MARK ME BRAINLIEST

Discussion

42.	Complete the following table suitable answer
Answer» ANSWER: table is no you QUESTION not WRITE

42.

Complete the following table suitable answer

Answer»

ANSWER:

table is no you QUESTION not WRITE

Discussion

43.	A barrel full of rainwater has a spigot near the bottom at a depth of 80 beneath the surface of waterwhen the spigot is directed horizantally and is opened how fast does the water come out?
Answer» ANSWER: good EVENING friend have a NICE DAY

43.

A barrel full of rainwater has a spigot near the bottom at a depth of 80 beneath the surface of waterwhen the spigot is directed horizantally and is opened how fast does the water come out?

Answer»

ANSWER:

good EVENING friend

have a NICE DAY

Discussion

44.	What will be the change in heat if the resistence in the circuit ishalved (R/2)
Answer» EXPLANATION: H1 = V²/R t H2 = 2 V² / R t = 2H1 change in HEAT ,∆H = H2 - H1 = H1.

44.

What will be the change in heat if the resistence in the circuit ishalved (R/2)

Answer»

EXPLANATION:

H1 = V²/R t

H2 = 2 V² / R t = 2H1

change in HEAT ,∆H = H2 - H1 = H1.

Discussion

45.	A solid weight 0.09N in air and0.06N in water what is R.d of the solid
Answer» Given, WEIGHT in air (W₁) = 0.09 N Weight in water (W₂) = 0.06 N R.D = W₁/(W₁-W₂) = 0.09 / (0.09-0.06) = 0.09/0.03 = 3 The Relative DENSITY (R.D) is 3. I hope this HELPS.

45.

A solid weight 0.09N in air and0.06N in water what is R.d of the solid

Answer»

Given,

WEIGHT in air (W₁) = 0.09 N

Weight in water (W₂) = 0.06 N

R.D = W₁/(W₁-W₂)

= 0.09 / (0.09-0.06)

= 0.09/0.03

= 3

The Relative DENSITY (R.D) is 3.

I hope this HELPS.

Discussion

46.	Write the dimensional formula
Answer» ANSWER: DIMENSIONS of the physical quantity are the power to which the base quantities are raised to REPRESENT that quantity. Dimensions and DIMENSIONAL Formula. Physical Quantity Dimensional Equation Force (F) [F] = [M L T-2] Power (P) [P] = [M L2 T-3] Velocity (v) [v] = [M L T-1] Density (D) [D] = [M L3 T0]

46.

Write the dimensional formula

Answer»

ANSWER:

DIMENSIONS of the physical quantity are the power to which the base quantities are raised to REPRESENT that quantity.

Dimensions and DIMENSIONAL Formula.

Physical Quantity Dimensional Equation

Force (F) [F] = [M L T-2]

Power (P) [P] = [M L2 T-3]

Velocity (v) [v] = [M L T-1]

Density (D) [D] = [M L3 T0]

Discussion

47.	Note: -You are attempting question 5 out of 12Calculate the value of the characteristic times for the tiny oildrop in the Millikan oildropexperiment when its terminal speed is 6.1x10 m/s.(A) 1x10-S(B) 9x10-0 S(C) 6.2x10-6S(D) 2x10-6SAnswerOAB.C сCD
Answer» ANSWER: A.=1×10-S is the ans please MAKE me BRAIN LIST

47.

Note: -You are attempting question 5 out of 12Calculate the value of the characteristic times for the tiny oildrop in the Millikan oildropexperiment when its terminal speed is 6.1x10 m/s.(A) 1x10-S(B) 9x10-0 S(C) 6.2x10-6S(D) 2x10-6SAnswerOAB.C сCD

Answer»

ANSWER:

A.=1×10-S

is the ans

please MAKE me BRAIN LIST

Discussion

48.	What weight of potassium chlorate of 96%purity will yield 4.8 gm oxygen on complete thermal decomposition? [K = 39, C1 = 35.5, 0 = 16]please proof in copy and send me please give right answer
Answer» ANSWER: SEE the answer on CHROME this answer HELP you

48.

What weight of potassium chlorate of 96%purity will yield 4.8 gm oxygen on complete thermal decomposition? [K = 39, C1 = 35.5, 0 = 16]please proof in copy and send me please give right answer

Answer»

ANSWER:

SEE the answer on CHROME this answer HELP you

Discussion

49.	Derive second equation of motion. A body acquires the velocity of 10 m/s in 5 sec. at a rate of2
Answer» ANSWER: The ATTACHMENT has the answer

49.

Derive second equation of motion. A body acquires the velocity of 10 m/s in 5 sec. at a rate of2

Answer»

ANSWER:

The ATTACHMENT has the answer

Discussion

50.	How do you interprete the chemical equation
Answer» The left SIDE of the equation represents the substances before the REACTION occurs, known as the reactant. The right side shows the substances that were changed during the reaction, or the products. The arrow indicates that a chemical change occurs. A correct chemical equation is balanced

50.

How do you interprete the chemical equation

Answer»

The left SIDE of the equation represents the substances before the REACTION occurs, known as the reactant. The right side shows the substances that were changed during the reaction, or the products. The arrow indicates that a chemical change occurs.

A correct chemical equation is balanced

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

A positively charge glass rod repels a suspended object. What is the charge of the object?

derived an expression of magnitude and direction of resultant to vectors using parallelogram of vector​

Resistor of 1 ohm 100 ohm are arranged in parallel resultant resistance will be​

⠀→ 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 ?​

(8)State the four fundamental laws in geometrical optics.​

List at least 3 reasons to support the idea that sound in a wave

If your weight is the force created by gravity on your body, what is the reaction force?

How to Derive this formula? (Don't Spam Please)​

Is easier to pull a land roller then pushing​

Draw well labelled ray diagram of deviation through prism​

hope it HELPS U

PLEASE mark my answer brainlist

Why should the resistance of an ammeter be very small.

What is the multiplicationof scalar with vector​

Good conductor of heat?​

Photocell is called electric eyeWhen light is incident on some semiconductor

Which system covers most of the apace in rocket

which of the following represents voltage. a)work done/ current * charge b) work done* time / current c) work done * charge d) workbdone * charge * time​

The scalar product of 2i + 4j+ 5k and 3i + 2J + k=

Y=cCe-fp(x)dx is the solution

Define principal specific heat capacity a gases at constant pressure are at constant volume​

(7) What is Ray Optics and Wave Optics?​

How can kinematics be applied to everyday life

Define the s.i unit of Electrici charge​

1.Distance between two points (2,3,3) and (8,5,0) is:-(1) 4 (2) 5 (3) 6 (4) 7​

Work done is product of______and distance moved in the direction of force

a ball of mass 200g start moving with acceleration of 10m/s when hit by force which act on it for 0.1 second then find impulsive force

Your answer in ATTACHMENT ✌️✌️

(6)Explain nature of light.​

What is radioactive waves?​

Applications of Transistors?​

Find angle between hour hand and minute hand at2:00o clock

पुरानो सिरक भन्दा नयाँ सिरक तातो हुन्छ किन?

Ay Find amount of change produce due to loss of150 electronas find amount of charge produce due to loss of1 - 1000 electron​

Write the industrial application of detergent?​

Explain magnetic fields​

11o.ool 2,203)A force of looN an a Particle at angieof 30° to the vertical find thehorizontal and vertical?​

What is the length of the simple pendulum which ticks ​

The error in the value of speed of sound calculated by Newton at S.T.P. is about:(a) 14% (b) 15% (c) 16%

Find out the odd one and write the reason ?(Volume,Time,Density,Area)

Convert27 degree and30 degree into kelvin

Which is an example of a rotational movement ?A) a planet moving around the sunB) a body in a giant wheelC) a spinning topD)a swinging pendulum

Why Einstein Knew That Gravity Must Bend Light ?? ​

What is total internal reflection and explain with diagram?​

Complete the following table suitable answer

A barrel full of rainwater has a spigot near the bottom at a depth of 80 beneath the surface of waterwhen the spigot is directed horizantally and is opened how fast does the water come out?

What will be the change in heat if the resistence in the circuit ishalved (R/2)

A solid weight 0.09N in air and0.06N in water what is R.d of the solid

Write the dimensional formula​

DIMENSIONS of the physical quantity are the power to which the base quantities are raised to REPRESENT that quantity.

Note: -You are attempting question 5 out of 12Calculate the value of the characteristic times for the tiny oildrop in the Millikan oildropexperiment when its terminal speed is 6.1x10 m/s.(A) 1x10-S(B) 9x10-0 S(C) 6.2x10-6S(D) 2x10-6SAnswerOAB.C сCD​

What weight of potassium chlorate of 96%purity will yield 4.8 gm oxygen on complete thermal decomposition? [K = 39, C1 = 35.5, 0 = 16]please proof in copy and send me please give right answer ​

Derive second equation of motion. A body acquires the velocity of 10 m/s in 5 sec. at a rate of2

How do you interprete the chemical equation​

derived an expression of magnitude and direction of resultant to vectors using parallelogram of vector

Resistor of 1 ohm 100 ohm are arranged in parallel resultant resistance will be

⠀→ 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 ?

(8)State the four fundamental laws in geometrical optics.

How to Derive this formula? (Don't Spam Please)

Is easier to pull a land roller then pushing

Draw well labelled ray diagram of deviation through prism

What is the multiplicationof scalar with vector

Good conductor of heat?

which of the following represents voltage. a)work done/ current * charge b) work done* time / current c) work done * charge d) workbdone * charge * time

Define principal specific heat capacity a gases at constant pressure are at constant volume

(7) What is Ray Optics and Wave Optics?

Define the s.i unit of Electrici charge

1.Distance between two points (2,3,3) and (8,5,0) is:-(1) 4 (2) 5 (3) 6 (4) 7

(6)Explain nature of light.

What is radioactive waves?

Applications of Transistors?

Ay Find amount of change produce due to loss of150 electronas find amount of charge produce due to loss of1 - 1000 electron

Write the industrial application of detergent?

Explain magnetic fields

11o.ool 2,203)A force of looN an a Particle at angieof 30° to the vertical find thehorizontal and vertical?

What is the length of the simple pendulum which ticks

Why Einstein Knew That Gravity Must Bend Light ??

What is total internal reflection and explain with diagram?

Write the dimensional formula

Note: -You are attempting question 5 out of 12Calculate the value of the characteristic times for the tiny oildrop in the Millikan oildropexperiment when its terminal speed is 6.1x10 m/s.(A) 1x10-S(B) 9x10-0 S(C) 6.2x10-6S(D) 2x10-6SAnswerOAB.C сCD

What weight of potassium chlorate of 96%purity will yield 4.8 gm oxygen on complete thermal decomposition? [K = 39, C1 = 35.5, 0 = 16]please proof in copy and send me please give right answer

How do you interprete the chemical equation