9478 + Interview Questions in Physics Page 187 InterviewSolution

9301.	Name the unit which is used to express distances between the various celestial bodies (like stars and planets).
Answer» Name the unit which is used to express distances between the various celestial bodies (like stars and planets).

Discussion

9302.	For higher pitch of the sound wave frequency has to be ______.
Answer» For higher pitch of the sound wave frequency has to be ______.

Discussion

9303.	Explain refraction of light.
Answer» Explain refraction of light.

Discussion

9304.	The diagram below shows two identical glass tubes A and B tied with balloons at one end. Water is poured in tube A whereas kerosene is added in tube B. It is observed that bigger bulge is produced in tube A. Which of the following could explain this fact?
Answer» The diagram below shows two identical glass tubes A and B tied with balloons at one end. Water is poured in tube A whereas kerosene is added in tube B. It is observed that bigger bulge is produced in tube A. Which of the following could explain this fact?

9304.

The diagram below shows two identical glass tubes A and B tied with balloons at one end. Water is poured in tube A whereas kerosene is added in tube B. It is observed that bigger bulge is produced in tube A. Which of the following could explain this fact?

Answer»

The diagram below shows two identical glass tubes A and B tied with balloons at one end. Water is poured in tube A whereas kerosene is added in tube B. It is observed that bigger bulge is produced in tube A. Which of the following could explain this fact?

Discussion

9305.	Explain Quantisation of charge
Answer» Explain Quantisation of charge

Discussion

9306.	Considering a hypothetical situation where Ram, while going to Venus promises Shyam to return after completion of one year. Shyam was on earth and was waiting for Ram to return, but Ram came after 225 days, but said that he has kept his promise. He came after 225 days because
Answer» Considering a hypothetical situation where Ram, while going to Venus promises Shyam to return after completion of one year. Shyam was on earth and was waiting for Ram to return, but Ram came after $225$ days, but said that he has kept his promise. He came after $225$ days because

9306.

Considering a hypothetical situation where Ram, while going to Venus promises Shyam to return after completion of one year. Shyam was on earth and was waiting for Ram to return, but Ram came after 225 days, but said that he has kept his promise. He came after 225 days because

Answer»

Considering a hypothetical situation where Ram, while going to Venus promises Shyam to return after completion of one year. Shyam was on earth and was waiting for Ram to return, but Ram came after $225$ days, but said that he has kept his promise. He came after $225$ days because

Discussion

9307.	Why does the speed of light of all colors is different in the same medium
Answer» Why does the speed of light of all colors is different in the same medium

Discussion

9308.	calculate the density and relative density of a brine solution mass of empty density bottle= 22 grams mass of bottle + water = 50 grams mass of bottle + brine solution = 54 grams
Answer» calculate the density and relative density of a brine solution mass of empty density bottle= 22 grams mass of bottle + water = 50 grams mass of bottle + brine solution = 54 grams

9308.

calculate the density and relative density of a brine solution mass of empty density bottle= 22 grams mass of bottle + water = 50 grams mass of bottle + brine solution = 54 grams

Answer»

calculate the density and relative density of a brine solution

mass of empty density bottle= 22 grams

mass of bottle + water = 50 grams

mass of bottle + brine solution = 54 grams

Discussion

9309.	What happens to light when it enters our eye? Is it gets vanished or converted into another form of energy.
Answer» What happens to light when it enters our eye? Is it gets vanished or converted into another form of energy.

Discussion

9310.	What can you conclude about the characteristics of friction?
Answer» What can you conclude about the characteristics of friction?

Discussion

9311.	(a)Though moon is a natural satellite, but it can be used for communication purposes.give reasons. (b) light travels with a speed of 3×10 power 8 m/s in vaccine. Sunlight takes 8.3 minutes to reach the earth. Calculate the distance between the earth and the sun
Answer» (a)Though moon is a natural satellite, but it can be used for communication purposes.give reasons. (b) light travels with a speed of 3×10 power 8 m/s in vaccine. Sunlight takes 8.3 minutes to reach the earth. Calculate the distance between the earth and the sun

9311.

(a)Though moon is a natural satellite, but it can be used for communication purposes.give reasons. (b) light travels with a speed of 3×10 power 8 m/s in vaccine. Sunlight takes 8.3 minutes to reach the earth. Calculate the distance between the earth and the sun

Answer»

(a)Though moon is a natural satellite, but it can be used for communication purposes.give reasons.

(b) light travels with a speed of 3×10 power 8 m/s in vaccine. Sunlight takes 8.3 minutes to reach the earth. Calculate the distance between the earth and the sun

Discussion

9312.	Find out the angle of refraction when a light travels from medium A to medium B. Speed of light in A =2×108 m/s Speed of light in B =3×108 m/s
Answer» Find out the angle of refraction when a light travels from medium A to medium B. Speed of light in A $= 2 \times 10^{8} m / s$ Speed of light in B $= 3 \times 10^{8} m / s$

9312.

Find out the angle of refraction when a light travels from medium A to medium B. Speed of light in A =2×108 m/s Speed of light in B =3×108 m/s

Answer»

Find out the angle of refraction when a light travels from medium A to medium B.

Speed of light in A $= 2 \times 10^{8} m / s$
Speed of light in B $= 3 \times 10^{8} m / s$

Discussion

9313.	What is a note?
Answer» What is a note?

Discussion

9314.	What is earth ?
Answer» What is earth ?

Discussion

9315.	If the density of an object is 2355 kg/m³, then what is its relative density?
Answer» If the density of an object is 2355 kg/m³, then what is its relative density?

Discussion

9316.	The direction of heat transfer depends on ___ of the bodies.
Answer» The direction of heat transfer depends on ___ of the bodies.

Discussion

9317.	A car is moving at a speed of 16 ms−1. A force causes it to accelerate at a rate of 2 ms−2 for four seconds. If the mass of the car is 2000 kg, find the change in momentum caused by the force.
Answer» A car is moving at a speed of $16 m s^{- 1}$ . A force causes it to accelerate at a rate of $2 m s^{- 2}$ for four seconds. If the mass of the car is $2000 k g$ , find the change in momentum caused by the force.

Discussion

9318.	If the water at room temperature is cooled down to a temperature below freezing point, which of the following statements will be true?
Answer» If the water at room temperature is cooled down to a temperature below freezing point, which of the following statements will be true?

Discussion

9319.	The resultant of balanced forces is :
Answer» The resultant of balanced forces is :

Discussion

9320.	Identify the thrust among the three different forces applied on the box as shown in the figure.
Answer» Identify the thrust among the three different forces applied on the box as shown in the figure.

Discussion

9321.	1L flask contains nitrogen along with a drop or two of water at 40∘C, the total pressure being 760 torr. If all the conents are transferred to another flask of 0.5 L at the same temperature, the pressure set up in the second flask will be (aqueous tension at 40∘C=55 torr)
Answer» 1L flask contains nitrogen along with a drop or two of water at $40^{\circ} C$ , the total pressure being 760 torr. If all the conents are transferred to another flask of 0.5 L at the same temperature, the pressure set up in the second flask will be (aqueous tension at $40^{\circ} C = 55 t o r r)$

Discussion

9322.	What is Braille?
Answer» What is Braille?

Discussion

9323.	How is sound produced when someone is washing clothes?
Answer» How is sound produced when someone is washing clothes?

Discussion

9324.	What is the difference between reflection and refraction
Answer» What is the difference between reflection and refraction

Discussion

9325.	Which of the following are the characteristics of sound?
Answer» Which of the following are the characteristics of sound?

Discussion

9326.	Why the Venus is the hottest planet in our solar system while mercury is the closest from sun ?
Answer» Why the Venus is the hottest planet in our solar system while mercury is the closest from sun ?

Discussion

9327.	What is the SI unit of loudness?
Answer» What is the SI unit of loudness?

Discussion

9328.	Which of these is an example of a transverse wave?
Answer» Which of these is an example of a transverse wave?

Discussion

9329.	A magnet in the form of a cube is placed on a piece of cork that floats on water. The cube is marked with four faces W, X, Y and Z and the compass needle points in the direction as shown in the figure. The arrow beside the N symbol represents the direction of the geographical north pole. Which of the following faces denote the N - pole and S - pole of the magnet?
Answer» A magnet in the form of a cube is placed on a piece of cork that floats on water. The cube is marked with four faces W, X, Y and Z and the compass needle points in the direction as shown in the figure. The arrow beside the N symbol represents the direction of the geographical north pole. Which of the following faces denote the N - pole and S - pole of the magnet?

Discussion

9330.	What happens when we take a closed bottle to the moon and try to open it there? [2 MARKS]
Answer» What happens when we take a closed bottle to the moon and try to open it there? [2 MARKS]

Discussion

9331.	The density of water is 1000 kg/m^3. If a solid of relative density 1.5 is placed in water, will it sink or float? Why?
Answer» The density of water is 1000 kg/m^3. If a solid of relative density 1.5 is placed in water, will it sink or float? Why?

Discussion

9332.	Sound produced by a dog whistle is in:
Answer» Sound produced by a dog whistle is in:

9332.

Sound produced by a dog whistle is in:

Answer»

Sound produced by a dog whistle is in:

Discussion

9333.	What is the intensity of gravitational field of the centre of a uniform spherical shell
Answer» What is the intensity of gravitational field of the centre of a uniform spherical shell

Discussion

9334.	Discuss the factors on which nature of soil depends. [2 MARKS]
Answer» Discuss the factors on which nature of soil depends. [2 MARKS]

Discussion

9335.	Consider the following statements: Statement 1: Friction is caused due to interlocking of irregularities present on the surfaces in contact. Statement 2: Frictional force increases if the two surfaces are pressed harder. Which of these statements is/are correct?
Answer» Consider the following statements: Statement 1: Friction is caused due to interlocking of irregularities present on the surfaces in contact. Statement 2: Frictional force increases if the two surfaces are pressed harder. Which of these statements is/are correct?

Discussion

9336.	If a car at rest accelerates uniformly to a speed of 144 km/h in 20 s, it covers a distance of
Answer» If a car at rest accelerates uniformly to a speed of $144 km/h$ in $20 s$ , it covers a distance of

Discussion

9337.	List out the physical quantities on which the gravitational force between objects depends. [2 MARKS]
Answer» List out the physical quantities on which the gravitational force between objects depends. [2 MARKS]

Discussion

9338.	Find the resistance of an electric motor which when connected across a battery of 6 volts for 1 min runs with 216 Joules of energy
Answer» Find the resistance of an electric motor which when connected across a battery of 6 volts for 1 min runs with 216 Joules of energy

Discussion

9339.	From which of the following objects will a regular reflection take place?
Answer» From which of the following objects will a regular reflection take place?

Discussion

9340.	Given in the figure is a football on which some force is applied. On which of the following floors does the ball travel a longer distance?
Answer» Given in the figure is a football on which some force is applied. On which of the following floors does the ball travel a longer distance?

9340.

Given in the figure is a football on which some force is applied. On which of the following floors does the ball travel a longer distance?

Answer»

Given in the figure is a football on which some force is applied.

On which of the following floors does the ball travel a longer distance?

Discussion

9341.	Which among the following frequencies is inaudible to humans?
Answer» Which among the following frequencies is inaudible to humans?

Discussion

9342.	If a positively charged body is brought and touched with positively charged electroscope then electron will lo from which thing to which thing. Is it depended and there electronegativity or electropositivity
Answer» If a positively charged body is brought and touched with positively charged electroscope then electron will lo from which thing to which thing. Is it depended and there electronegativity or electropositivity

Discussion

9343.	(a) How does the pressure of a liquid depend on its depth? Draw a labelled diagram to show that the pressure of a liquid (say, water) depends on its depth. (b) Explain why, the walls of a dam are thicker near the bottom than at the top.
Answer» (a) How does the pressure of a liquid depend on its depth? Draw a labelled diagram to show that the pressure of a liquid (say, water) depends on its depth. (b) Explain why, the walls of a dam are thicker near the bottom than at the top.

9343.

(a) How does the pressure of a liquid depend on its depth? Draw a labelled diagram to show that the pressure of a liquid (say, water) depends on its depth. (b) Explain why, the walls of a dam are thicker near the bottom than at the top.

Answer»

(a) How does the pressure of a liquid depend on its depth? Draw a labelled diagram to show that the pressure of a liquid (say, water) depends on its depth.

(b) Explain why, the walls of a dam are thicker near the bottom than at the top.

Discussion

9344.	There are ___ seconds in 3 minutes.
Answer» There are ___ seconds in 3 minutes.

Discussion

9345.	During electroplating the copper plate on the negative terminal gains weight and positive terminal having the copper plate loses weight. If this journey happens continuously what will happen to the positive copper plate as it will loose all the copper ions it contains? Will it dissolve into copper sulphate solution?
Answer» During electroplating the copper plate on the negative terminal gains weight and positive terminal having the copper plate loses weight. If this journey happens continuously what will happen to the positive copper plate as it will loose all the copper ions it contains? Will it dissolve into copper sulphate solution?

Discussion

9346.	If the relative density of an object is 1.5, what is its density?
Answer» If the relative density of an object is 1.5, what is its density?

Discussion

9347.	The steam pushing out from a pressure cooker occupies a large volume. Which of the following effects of force does it establish?
Answer» The steam pushing out from a pressure cooker occupies a large volume. Which of the following effects of force does it establish?

Discussion

9348.	Why does my school shoes have treads? Explain !
Answer» Why does my school shoes have treads? Explain !

9348.

Why does my school shoes have treads? Explain !

Answer»

Why does my school shoes have treads?

Explain !

Discussion

9349.	Which instrument is used to measure body temperature?
Answer» Which instrument is used to measure body temperature?

Discussion

9350.	When does diffused reflection take place?
Answer» When does diffused reflection take place?

Discussion

Explore topic-wise InterviewSolutions in .

Name the unit which is used to express distances between the various celestial bodies (like stars and planets).

For higher pitch of the sound wave frequency has to be ______.

Explain refraction of light.

The diagram below shows two identical glass tubes A and B tied with balloons at one end. Water is poured in tube A whereas kerosene is added in tube B. It is observed that bigger bulge is produced in tube A. Which of the following could explain this fact?

Explain Quantisation of charge

Considering a hypothetical situation where Ram, while going to Venus promises Shyam to return after completion of one year. Shyam was on earth and was waiting for Ram to return, but Ram came after 225 days, but said that he has kept his promise. He came after 225 days because

Why does the speed of light of all colors is different in the same medium

calculate the density and relative density of a brine solution mass of empty density bottle= 22 grams mass of bottle + water = 50 grams mass of bottle + brine solution = 54 grams

What happens to light when it enters our eye? Is it gets vanished or converted into another form of energy.

What can you conclude about the characteristics of friction?

(a)Though moon is a natural satellite, but it can be used for communication purposes.give reasons. (b) light travels with a speed of 3×10 power 8 m/s in vaccine. Sunlight takes 8.3 minutes to reach the earth. Calculate the distance between the earth and the sun

Find out the angle of refraction when a light travels from medium A to medium B. Speed of light in A =2×108 m/s Speed of light in B =3×108 m/s

What is a note?

What is earth ?

If the density of an object is 2355 kg/m³, then what is its relative density?

The direction of heat transfer depends on ___ of the bodies.

A car is moving at a speed of 16 ms−1. A force causes it to accelerate at a rate of 2 ms−2 for four seconds. If the mass of the car is 2000 kg, find the change in momentum caused by the force.

If the water at room temperature is cooled down to a temperature below freezing point, which of the following statements will be true?

The resultant of balanced forces is :

Identify the thrust among the three different forces applied on the box as shown in the figure.

1L flask contains nitrogen along with a drop or two of water at 40∘C, the total pressure being 760 torr. If all the conents are transferred to another flask of 0.5 L at the same temperature, the pressure set up in the second flask will be (aqueous tension at 40∘C=55 torr)

What is Braille?

How is sound produced when someone is washing clothes?

What is the difference between reflection and refraction

Which of the following are the characteristics of sound?

Why the Venus is the hottest planet in our solar system while mercury is the closest from sun ?

What is the SI unit of loudness?

Which of these is an example of a transverse wave?

What happens when we take a closed bottle to the moon and try to open it there? [2 MARKS]

The density of water is 1000 kg/m^3. If a solid of relative density 1.5 is placed in water, will it sink or float? Why?

Sound produced by a dog whistle is in:

What is the intensity of gravitational field of the centre of a uniform spherical shell

Discuss the factors on which nature of soil depends. [2 MARKS]

Consider the following statements: Statement 1: Friction is caused due to interlocking of irregularities present on the surfaces in contact. Statement 2: Frictional force increases if the two surfaces are pressed harder. Which of these statements is/are correct?

If a car at rest accelerates uniformly to a speed of 144 km/h in 20 s, it covers a distance of

List out the physical quantities on which the gravitational force between objects depends. [2 MARKS]

Find the resistance of an electric motor which when connected across a battery of 6 volts for 1 min runs with 216 Joules of energy

From which of the following objects will a regular reflection take place?

Given in the figure is a football on which some force is applied. On which of the following floors does the ball travel a longer distance?

Which among the following frequencies is inaudible to humans?

If a positively charged body is brought and touched with positively charged electroscope then electron will lo from which thing to which thing. Is it depended and there electronegativity or electropositivity

(a) How does the pressure of a liquid depend on its depth? Draw a labelled diagram to show that the pressure of a liquid (say, water) depends on its depth. (b) Explain why, the walls of a dam are thicker near the bottom than at the top.

There are ___ seconds in 3 minutes.

If the relative density of an object is 1.5, what is its density?

The steam pushing out from a pressure cooker occupies a large volume. Which of the following effects of force does it establish?

Why does my school shoes have treads? Explain !

Which instrument is used to measure body temperature?

When does diffused reflection take place?