6277 + Interview Questions in Physics Page 1 InterviewSolution

1.	How. Does a electric moto work
Answer» How. Does a electric moto work

Discussion

2.	A force of 15 N is applied on a body over a surface area of 25 m2. Calculate the pressure applied on the surface.0.6
Answer» A force of $15 N$ is applied on a body over a surface area of 25 $m^{2}$ . Calculate the pressure applied on the surface. 0.6

Discussion

3.	Fill in the blanks: (a) The hotness of an object is determined by its __ __. (b) Temperature of boiling water cannot be measured by a __ __ thermometer. (c) Temperature is measured in degree ___ _. (d) No medium is required for transfer of heat by the process of ___ _. (e) A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of __ _ _. (f) Clothes of ___ _ colours absorb heat better than clothes of light colours.
Answer» Fill in the blanks: (a) The hotness of an object is determined by its __ __. (b) Temperature of boiling water cannot be measured by a __ __ thermometer. (c) Temperature is measured in degree ___ _. (d) No medium is required for transfer of heat by the process of ___ _. (e) A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of __ _ _. (f) Clothes of ___ _ colours absorb heat better than clothes of light colours.

3.

Fill in the blanks: (a) The hotness of an object is determined by its . (b) Temperature of boiling water cannot be measured by a thermometer. (c) Temperature is measured in degree ___ _. (d) No medium is required for transfer of heat by the process of ___ _. (e) A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of __ _ _. (f) Clothes of ___ _ colours absorb heat better than clothes of light colours.

Answer»

Fill in the blanks:

(a) The
hotness of an object is determined by its __
__.

(b) Temperature
of boiling water cannot be measured by a

__
__ thermometer.

(c) Temperature
is measured in degree ___ _.

(d) No
medium is required for transfer of heat by the process of ___
_.

(e) A cold steel spoon is dipped in a cup of hot
milk. It transfers heat to its other end by the process of __
_ _.

(f) Clothes of ___
_ colours absorb heat better than
clothes of light colours.

Discussion

4.	To which side does the reflecting surface of a convex mirror curve–inwards or outwards?
Answer» To which side does the reflecting surface of a convex mirror curve–inwards or outwards?

Discussion

5.	A straight line passing through the geometric centre of the spherical mirror and the focus is called the ____________ of the mirror.
Answer» A straight line passing through the geometric centre of the spherical mirror and the focus is called the ____________ of the mirror.

Discussion

6.	Four students recorded the readings of the current by observing the position of the pointer on the ammeter scale given below:If there is no zero error, the correct reading of the current is :(1) 2.3 A(2) 5 A(3) 2.0 A(4) 2.05 A
Answer» Four students recorded the readings of the current by observing the position of the pointer on the ammeter scale given below: If there is no zero error, the correct reading of the current is : (1) 2.3 A (2) 5 A (3) 2.0 A (4) 2.05 A

Discussion

7.	State the changes in form of energy while producing hydroelectricity
Answer» State the changes in form of energy while producing hydroelectricity

Discussion

8.	What is the similarity in cyclone, tornado thunderstorm?
Answer» What is the similarity in cyclone, tornado thunderstorm?

Discussion

9.	Question 2 (c) Mark T if the statement is true and F if it is false: We can obtain a real, enlarged and inverted image by a concave mirror.
Answer» Question 2 (c) Mark T if the statement is true and F if it is false: We can obtain a real, enlarged and inverted image by a concave mirror.

Discussion

10.	An aeroplane flies 400 m north and 300 m east and then 1200 m upwards then net displacement is
Answer» An aeroplane flies 400 m north and 300 m east and then 1200 m upwards then net displacement is

Discussion

11.	The electrolyte used in lechlance cell is
Answer» The electrolyte used in lechlance cell is

Discussion

12.	After holding a pack of ice in your hand for some time, if we put our hand in water at the normal temperature, our hand feels:
Answer» After holding a pack of ice in your hand for some time, if we put our hand in water at the normal temperature, our hand feels:

Discussion

13.	differentiate between mass and weight
Answer» _{differentiate between mass and weight}

Discussion

14.	Current passed through a spring, it will - Compress or expand
Answer» Current passed through a spring, it will - Compress or expand

Discussion

15.	Which of the following factors affect the flow of heat ?
Answer» Which of the following factors affect the flow of heat ?

Discussion

16.	In R-L-C series circuit, the potential differences across each element is 20 V. Now the value of the resistance alone is doubled, then P.D. across R, L andC respectively(a) 20 V, 10 V, 10 V(c) 20 V, 40 V, 40 V(b) 20 V, 20 V, 20 V(d) 10 V, 20 V, 20 V
Answer» In R-L-C series circuit, the potential differences across each element is 20 V. Now the value of the resistance alone is doubled, then P.D. across R, L andC respectively(a) 20 V, 10 V, 10 V(c) 20 V, 40 V, 40 V(b) 20 V, 20 V, 20 V(d) 10 V, 20 V, 20 V

Discussion

17.	Question 55Explain the role of the Sun in the formation of soil.
Answer» Question 55 Explain the role of the Sun in the formation of soil.

Discussion

18.	What is the unit of pressure?
Answer» What is the unit of pressure?

Discussion

19.	IF THE DISPLACEMENT BY A CAR IS DIRECTLY PROPORTIONAL TO TIME , THE CAR IS MOVING WITH (a)UNIFORM ACCERATION (b)ZERO ACCELERATION
Answer» IF THE DISPLACEMENT BY A CAR IS DIRECTLY PROPORTIONAL TO TIME , THE CAR IS MOVING WITH (a)UNIFORM ACCERATION (b)ZERO ACCELERATION

Discussion

20.	38. A car is moving with speed 108 km/ hour on a straight road, decreases its speed uniformly to 90 km per hour in 5 seconds.The displacement of the car in the last second of its motion before it comes to a halt is
Answer» 38. A car is moving with speed 108 km/ hour on a straight road, decreases its speed uniformly to 90 km per hour in 5 seconds.The displacement of the car in the last second of its motion before it comes to a halt is

Discussion

21.	The potential energy of a particle varies with dis†an ce x from a fixed origin as U=A\sqrt x /x^2+B Where A and B are dimensional cons†an t then dimensional formula for AB is
Answer» The potential energy of a particle varies with dis†an ce x from a fixed origin as U=A\sqrt x /x^2+B Where A and B are dimensional cons†an t then dimensional formula for AB is

Discussion

22.	An unpolarized light of average intensity I is assed through a polarizer. Find the amplitudeof electric field of light coming out.(Symbols have their usual meanin
Answer» An unpolarized light of average intensity I is assed through a polarizer. Find the amplitudeof electric field of light coming out.(Symbols have their usual meanin

Discussion

23.	11. A pendulum Bob has a speed 3 metre per second while passing through its lowest position length of the pendulum is 0.5 m then its speed when it makes an angle of 60 degree with the vertical is
Answer» 11. A pendulum Bob has a speed 3 metre per second while passing through its lowest position length of the pendulum is 0.5 m then its speed when it makes an angle of 60 degree with the vertical is

Discussion

24.	Define the term 'work'. Write the formula for the work done on a body when a force acts on the body in the direction of its displacement. Give the meaning of each symbol which occurs in the formula.
Answer» Define the term 'work'. Write the formula for the work done on a body when a force acts on the body in the direction of its displacement. Give the meaning of each symbol which occurs in the formula.

Discussion

25.	WHEN A PERSON SHOUTS FROM A ROOM😲 IT BENDS AND REACHES THE EAR AND WE HEAR IT ALSO WATER LIKE WAVES ALSO BEND AROUND CORNERS BUT WHY LIGHT DOES NOT BENT WITHOUT THE HELP OF MIRRORS WHY? PLEASE ANSWER FAST TOMMOROW I AM HAVING A TEST !PLEASE🙏🙏
Answer» WHEN A PERSON SHOUTS FROM A ROOM😲 IT BENDS AND REACHES THE EAR AND WE HEAR IT ALSO WATER LIKE WAVES ALSO BEND AROUND CORNERS BUT WHY LIGHT DOES NOT BENT WITHOUT THE HELP OF MIRRORS WHY? PLEASE ANSWER FAST TOMMOROW I AM HAVING A TEST !PLEASE🙏🙏

Discussion

26.	You are provided with a bulb, a cell, two wires, a switch. Draw a diagram to show a complete circuit.
Answer» You are provided with a bulb, a cell, two wires, a switch. Draw a diagram to show a complete circuit.

Discussion

27.	Find the coordinates of image of point object P in mm formed after two successive reflections one at concave mirror and the other at convex.
Answer» Find the coordinates of image of point object $P$ in $mm$ formed after two successive reflections one at concave mirror and the other at convex.

Discussion

28.	47. A thermally insulated rigid container contains an ideal gas heated by a filament of resistance 100 ohm through a current of 1 A for 5 min then change in internal energy is__.
Answer» 47. A thermally insulated rigid container contains an ideal gas heated by a filament of resistance 100 ohm through a current of 1 A for 5 min then change in internal energy is__.

Discussion

29.	Sushweta is sitting in her house looking at the sea through a window. She felt a cool breeze blowing across her face. What can be deduced from the above information?
Answer» Sushweta is sitting in her house looking at the sea through a window. She felt a cool breeze blowing across her face. What can be deduced from the above information?

29.

Sushweta is sitting in her house looking at the sea through a window. She felt a cool breeze blowing across her face. What can be deduced from the above information?

Answer»

Sushweta is sitting in her house looking at the sea through a window. She felt a cool breeze blowing across her face.

What can be deduced from the above information?

Discussion

30.	The strongest winds in a cyclone occur in the centre on the 'eye' of storm. Do you agree? Give reasons.
Answer» The strongest winds in a cyclone occur in the centre on the 'eye' of storm. Do you agree? Give reasons.

Discussion

31.	A battery of internal resistance r having no load reistance has an emf E Volt. What will be the potential across the terminals of the battery when a load reistance R(=r) is connected to its terminals?
Answer» A battery of internal resistance $r$ having no load reistance has an emf $E Volt$ . What will be the potential across the terminals of the battery when a load reistance $R (= r)$ is connected to its terminals?

Discussion

32.	If a long copper rod Carrie's a direct current the magnetic field associated with the current is what?
Answer» If a long copper rod Carrie's a direct current the magnetic field associated with the current is what?

Discussion

33.	How many terminals does a single cell battery have?
Answer» How many terminals does a single cell battery have?

Discussion

34.	Which of the following images will be the correct mirror half of the given image?
Answer» Which of the following images will be the correct mirror half of the given image?

Discussion

35.	Question 123 A piece of cloth 5 m long shrinks 10 % on washing. How long will the cloth be after washing ?
Answer» Question 123 A piece of cloth 5 m long shrinks 10 % on washing. How long will the cloth be after washing ?

35.

Question 123 A piece of cloth 5 m long shrinks 10 % on washing. How long will the cloth be after washing ?

Answer»

Question 123

A piece of cloth 5 m long shrinks 10 % on washing. How long will the cloth be after washing ?

Discussion

36.	Charge can never found equal to ??
Answer» Charge can never found equal to ??

Discussion

37.	Which of the following is a natural disaster?
Answer» Which of the following is a natural disaster?

Discussion

38.	State an experience that made you think that air exerts pressure. [1 MARK]
Answer» State an experience that made you think that air exerts pressure. [1 MARK]

Discussion

39.	What is the process called when gas is converted to liquid?
Answer» What is the process called when gas is converted to liquid?

Discussion

40.	___mirror is used as a rear-view mirror in cars.
Answer» ___mirror is used as a rear-view mirror in cars.

Discussion

41.	2 particles A & B are executing uniform circular motion on concentric & coplanar path. time period pf revolution of a and b are 4s and 4.5s. at t=0 they are on same line . the time at which A will pass B again is
Answer» 2 particles A & B are executing uniform circular motion on concentric & coplanar path. time period pf revolution of a and b are 4s and 4.5s. at t=0 they are on same line . the time at which A will pass B again is

Discussion

42.	A coin is thrown in a vertically upward direction with a velocity of 5 ms−1. If the acceleration of the coin during its motion is 10 ms−2 in the downward direction, what will be the height attained by the coin and how much time will it take to reach there ?
Answer» A coin is thrown in a vertically upward direction with a velocity of $5 m s^{- 1}$ . If the acceleration of the coin during its motion is $10 m s^{- 2}$ in the downward direction, what will be the height attained by the coin and how much time will it take to reach there ?

Discussion

43.	It's confusing to find E when one charge is absent at one of the corners of a regular polygon .
Answer» It's confusing to find E when one charge is absent at one of the corners of a regular polygon .

Discussion

44.	For the reaction N2 +O2 gives 2NO. Equilibrium cons†an t=2. Degree of association is?
Answer» For the reaction N2 +O2 gives 2NO. Equilibrium cons†an t=2. Degree of association is?

Discussion

45.	Civic Leader: The high cancer rate among our citizens is the result of hazardous material produced at your plant. Board of Directors: Our statistics show that rates of cancer are high throughout the valley in which the plant is situated because local wells that supply drinking water are polluted, not because of the plant. Which of the following, if true, most seriously weakens the board’s claims?
Answer» Civic Leader: The high cancer rate among our citizens is the result of hazardous material produced at your plant. Board of Directors: Our statistics show that rates of cancer are high throughout the valley in which the plant is situated because local wells that supply drinking water are polluted, not because of the plant. Which of the following, if true, most seriously weakens the board’s claims?

Discussion

46.	Give two examples to show that sound is produced due to the vibration of objects.
Answer» Give two examples to show that sound is produced due to the vibration of objects.

Discussion

47.	36.why does an oscillating dipole radiate energry only in direction perpendicular to direction of vibration?This is with reference to Polarisation by scattering.
Answer» 36.why does an oscillating dipole radiate energry only in direction perpendicular to direction of vibration?This is with reference to Polarisation by scattering.

Discussion

48.	Two toy-cars A and B of masses 200 g and 500 g respectively are moving with the same speed. Which of the two has greater kinetic energy ?
Answer» Two toy-cars A and B of masses 200 g and 500 g respectively are moving with the same speed. Which of the two has greater kinetic energy ?

Discussion

49.	Question 20Draw a ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surfaces. Also indicate the order of the colours of the spectrum obtained.
Answer» Question 20 Draw a ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surfaces. Also indicate the order of the colours of the spectrum obtained.

Discussion

50.	A/An ______ material is clear enough to allow the complete passage of light.
Answer» A/An ______ material is clear enough to allow the complete passage of light.

Discussion

Explore topic-wise InterviewSolutions in .

How. Does a electric moto work

A force of 15 N is applied on a body over a surface area of 25 m2. Calculate the pressure applied on the surface.0.6

To which side does the reflecting surface of a convex mirror curve–inwards or outwards?

A straight line passing through the geometric centre of the spherical mirror and the focus is called the ____________ of the mirror.

Four students recorded the readings of the current by observing the position of the pointer on the ammeter scale given below:If there is no zero error, the correct reading of the current is :(1) 2.3 A(2) 5 A(3) 2.0 A(4) 2.05 A

State the changes in form of energy while producing hydroelectricity

What is the similarity in cyclone, tornado thunderstorm?

Question 2 (c) Mark T if the statement is true and F if it is false: We can obtain a real, enlarged and inverted image by a concave mirror.

An aeroplane flies 400 m north and 300 m east and then 1200 m upwards then net displacement is

The electrolyte used in lechlance cell is

After holding a pack of ice in your hand for some time, if we put our hand in water at the normal temperature, our hand feels:

differentiate between mass and weight

Current passed through a spring, it will - Compress or expand

Which of the following factors affect the flow of heat ?

In R-L-C series circuit, the potential differences across each element is 20 V. Now the value of the resistance alone is doubled, then P.D. across R, L andC respectively(a) 20 V, 10 V, 10 V(c) 20 V, 40 V, 40 V(b) 20 V, 20 V, 20 V(d) 10 V, 20 V, 20 V

Question 55Explain the role of the Sun in the formation of soil.

What is the unit of pressure?

IF THE DISPLACEMENT BY A CAR IS DIRECTLY PROPORTIONAL TO TIME , THE CAR IS MOVING WITH (a)UNIFORM ACCERATION (b)ZERO ACCELERATION

38. A car is moving with speed 108 km/ hour on a straight road, decreases its speed uniformly to 90 km per hour in 5 seconds.The displacement of the car in the last second of its motion before it comes to a halt is

The potential energy of a particle varies with dis†an ce x from a fixed origin as U=A\sqrt x /x^2+B Where A and B are dimensional cons†an t then dimensional formula for AB is

An unpolarized light of average intensity I is assed through a polarizer. Find the amplitudeof electric field of light coming out.(Symbols have their usual meanin

11. A pendulum Bob has a speed 3 metre per second while passing through its lowest position length of the pendulum is 0.5 m then its speed when it makes an angle of 60 degree with the vertical is

Define the term 'work'. Write the formula for the work done on a body when a force acts on the body in the direction of its displacement. Give the meaning of each symbol which occurs in the formula.

WHEN A PERSON SHOUTS FROM A ROOM😲 IT BENDS AND REACHES THE EAR AND WE HEAR IT ALSO WATER LIKE WAVES ALSO BEND AROUND CORNERS BUT WHY LIGHT DOES NOT BENT WITHOUT THE HELP OF MIRRORS WHY? PLEASE ANSWER FAST TOMMOROW I AM HAVING A TEST !PLEASE🙏🙏

You are provided with a bulb, a cell, two wires, a switch. Draw a diagram to show a complete circuit.

Find the coordinates of image of point object P in mm formed after two successive reflections one at concave mirror and the other at convex.

47. A thermally insulated rigid container contains an ideal gas heated by a filament of resistance 100 ohm through a current of 1 A for 5 min then change in internal energy is__.

Sushweta is sitting in her house looking at the sea through a window. She felt a cool breeze blowing across her face. What can be deduced from the above information?

The strongest winds in a cyclone occur in the centre on the 'eye' of storm. Do you agree? Give reasons.

A battery of internal resistance r having no load reistance has an emf E Volt. What will be the potential across the terminals of the battery when a load reistance R(=r) is connected to its terminals?

If a long copper rod Carrie's a direct current the magnetic field associated with the current is what?

How many terminals does a single cell battery have?

Which of the following images will be the correct mirror half of the given image?

Question 123 A piece of cloth 5 m long shrinks 10 % on washing. How long will the cloth be after washing ?

Charge can never found equal to ??

Which of the following is a natural disaster?

State an experience that made you think that air exerts pressure. [1 MARK]

What is the process called when gas is converted to liquid?

___mirror is used as a rear-view mirror in cars.

2 particles A & B are executing uniform circular motion on concentric & coplanar path. time period pf revolution of a and b are 4s and 4.5s. at t=0 they are on same line . the time at which A will pass B again is

A coin is thrown in a vertically upward direction with a velocity of 5 ms−1. If the acceleration of the coin during its motion is 10 ms−2 in the downward direction, what will be the height attained by the coin and how much time will it take to reach there ?

It's confusing to find E when one charge is absent at one of the corners of a regular polygon .

For the reaction N2 +O2 gives 2NO. Equilibrium cons†an t=2. Degree of association is?

Give two examples to show that sound is produced due to the vibration of objects.

36.why does an oscillating dipole radiate energry only in direction perpendicular to direction of vibration?This is with reference to Polarisation by scattering.

Two toy-cars A and B of masses 200 g and 500 g respectively are moving with the same speed. Which of the two has greater kinetic energy ?

Question 20Draw a ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surfaces. Also indicate the order of the colours of the spectrum obtained.

A/An ______ material is clear enough to allow the complete passage of light.