9478 + Interview Questions in Physics Page 182 InterviewSolution

9051.	What is a conservative force? Give examples.
Answer» What is a conservative force? Give examples.

Discussion

9052.	Explain about repulsion between similar poles of 2 magnets. Is it a pull or a push?
Answer» Explain about repulsion between similar poles of 2 magnets. Is it a pull or a push?

Discussion

9053.	What are the two physical factors that contribute to the density of water?
Answer» What are the two physical factors that contribute to the density of water?

Discussion

9054.	The force exerted to pull a cart is directly proportional to the acceleration produced in the body. Express the statement as a linear equation of two variables and draw the graph of the same by taking the constant mass equal to 6 kg. Read from the graph, the force required when the acceleration produced is: (i) 5 ms−2 (ii) 6 ms−2
Answer» The force exerted to pull a cart is directly proportional to the acceleration produced in the body. Express the statement as a linear equation of two variables and draw the graph of the same by taking the constant mass equal to $6 k g$ . Read from the graph, the force required when the acceleration produced is: (i) $5 m s^{- 2}$ (ii) $6 m s^{- 2}$

Discussion

9055.	Question 3 (a) Express the following as cm using decimals: 5mm
Answer» Question 3 (a) Express the following as cm using decimals: 5mm

9055.

Question 3 (a) Express the following as cm using decimals: 5mm

Answer»

Question 3 (a)

Express the following as cm using decimals:

5mm

Discussion

9056.	State the laws of reflection. [3 MARKS]
Answer» State the laws of reflection. [3 MARKS]

Discussion

9057.	why is it not advisable to carry a fountain pen while travelling in an aeroplane ?
Answer» why is it not advisable to carry a fountain pen while travelling in an aeroplane ?

Discussion

9058.	Saturn will float in water. How and Why?
Answer» Saturn will float in water. How and Why?

Discussion

9059.	Some statements are given, followed by some conclusions. Consider the statements to be true even if they seem to be at variance from commonly known facts. Decide which of the given conclusions follow from the given statements. Statements: Some cameras are binoculars. All binoculars are spoons. Some spoons are cups. Conclusions: I. Some cups are binoculars. II. Some spoons are cameras. III. Some cups are cameras.
Answer» Some statements are given, followed by some conclusions. Consider the statements to be true even if they seem to be at variance from commonly known facts. Decide which of the given conclusions follow from the given statements. Statements: Some cameras are binoculars. All binoculars are spoons. Some spoons are cups. Conclusions: I. Some cups are binoculars. II. Some spoons are cameras. III. Some cups are cameras.

Discussion

9060.	A satellite is revolving around the Earth in a well defined circular orbit, the gravitational force between the Earth and satellite is the centripetal force of the circular motion. What can we say about the motion of the satellite if the gravitational force becomes zero?
Answer» A satellite is revolving around the Earth in a well defined circular orbit, the gravitational force between the Earth and satellite is the centripetal force of the circular motion. What can we say about the motion of the satellite if the gravitational force becomes zero?

Discussion

9061.	A 20 N force is applied on an area of 2.5 m2. Compute the pressure in Pa.8
Answer» A $20 N$ force is applied on an area of $2.5 m^{2}$ . Compute the pressure in $Pa$ . 8

Discussion

9062.	Q TO GET NINE IMAGES OF A SINGLE OBJECT,WHEN PLACED ASYYMETRICAL BETWEEN TWO PLANE MIRRORS.ANGLE BETWWEN 2 PLANE MIRRORS SHOULD BE.
Answer» Q TO GET NINE IMAGES OF A SINGLE OBJECT,WHEN PLACED ASYYMETRICAL BETWEEN TWO PLANE MIRRORS.ANGLE BETWWEN 2 PLANE MIRRORS SHOULD BE.

Discussion

9063.	If the density of my body is less than that of water I should float on water, but as I go deeper in water , the water above exerts pressure on me, thereby it may increase my weight, then will I sink or again come back on the surface ?
Answer» If the density of my body is less than that of water I should float on water, but as I go deeper in water , the water above exerts pressure on me, thereby it may increase my weight, then will I sink or again come back on the surface ?

Discussion

9064.	When nuclear reaction occurs whether fission or fusion, it produces ___ amount of energy.
Answer» When nuclear reaction occurs whether fission or fusion, it produces ___ amount of energy.

Discussion

9065.	The image of the word EARTH as seen from the periscope would appear as:
Answer» The image of the word EARTH as seen from the periscope would appear as:

Discussion

9066.	Is it more comfortable to have thin straps for school bags or broad? Why is that? [2 MARKS]
Answer» Is it more comfortable to have thin straps for school bags or broad? Why is that? [2 MARKS]

Discussion

9067.	What is the molecular formula of electric current and heat\energy not glucose?
Answer» What is the molecular formula of electric current and heat\energy not glucose?

Discussion

9068.	How to solve a problem with the number race to the power of some fraction
Answer» How to solve a problem with the number race to the power of some fraction

Discussion

9069.	Shirt is related to Button in the same way as Shoes is related to ……?
Answer» Shirt is related to Button in the same way as Shoes is related to ……?

Discussion

9070.	How do tornadoes form? How can we predict it's occurance?
Answer» How do tornadoes form? How can we predict it's occurance?

9070.

How do tornadoes form? How can we predict it's occurance?

Answer»

How do tornadoes form?

How can we predict it's occurance?

Discussion

9071.	Which among the following is a past participle? The annoyed conductor refused to return the change to me and rudely asked me to alight before my stop.
Answer» Which among the following is a past participle? The annoyed conductor refused to return the change to me and rudely asked me to alight before my stop.

9071.

Which among the following is a past participle? The annoyed conductor refused to return the change to me and rudely asked me to alight before my stop.

Answer»

Which among the following is a past participle?

The annoyed conductor refused to return the change to me and rudely asked me to alight before my stop.

Discussion

9072.	What is the minimum temperature difference required between the water at surface and 2 km depth to efficiently operate ocean thermal energy conversion plants?
Answer» What is the minimum temperature difference required between the water at surface and 2 km depth to efficiently operate ocean thermal energy conversion plants?

Discussion

9073.	A gas occupies a volume of 300 cc at 27∘C and 620 mm pressure. Find the volume of the gas at 47∘C and 640 mm.
Answer» A gas occupies a volume of $300 c c$ at $27^{\circ}$ C and $620 m m$ pressure. Find the volume of the gas at $47^{\circ}$ C and $640 m m$ .

Discussion

9074.	Calculate the depth at which pressure on a swimmer is 100 Pa. Given, density of water = 1000 kg/m³
Answer» Calculate the depth at which pressure on a swimmer is 100 Pa. Given, density of water = 1000 kg/m³

9074.

Calculate the depth at which pressure on a swimmer is 100 Pa. Given, density of water = 1000 kg/m³

Answer»

Calculate the depth at which pressure on a swimmer is 100 Pa. Given, density of water = 1000 kg/m³

Discussion

9075.	A container is placed on a table has four holes. The XA,XB,XCand XD represent the horizontal distances covered by the liquid coming out from the holes A,B,C, and D respectively. Which of the following options is correct?
Answer» A container is placed on a table has four holes. The $X_{A}, X_{B}, X_{C}$ and $X_{D}$ represent the horizontal distances covered by the liquid coming out from the holes $A, B, C,$ and $D$ respectively. Which of the following options is correct?

9075.

A container is placed on a table has four holes. The XA,XB,XCand XD represent the horizontal distances covered by the liquid coming out from the holes A,B,C, and D respectively. Which of the following options is correct?

Answer»

A container is placed on a table has four holes. The $X_{A}, X_{B}, X_{C}$ and $X_{D}$ represent the horizontal distances covered by the liquid coming out from the holes $A, B, C,$ and $D$ respectively. Which of the following options is correct?

Discussion

9076.	In the diagram, two friends are pushing a box on a frictionless surface as shown below. Which direction will the block move?
Answer» In the diagram, two friends are pushing a box on a frictionless surface as shown below. Which direction will the block move?

9076.

In the diagram, two friends are pushing a box on a frictionless surface as shown below. Which direction will the block move?

Answer»

In the diagram, two friends are pushing a box on a frictionless surface as shown below. Which direction will the block move?

Discussion

9077.	What is the net force on the block, if I am pushing the block with force, F on a table which is applying a frictional force, f ? [2 MARKS]
Answer» What is the net force on the block, if I am pushing the block with force, F on a table which is applying a frictional force, f ? [2 MARKS]

Discussion

9078.	Rahul is standing still with a 5 kg weight on his head for 5 hours. The work done is .
Answer» Rahul is standing still with a $5 k g$ weight on his head for $5$ hours. The work done is .

Discussion

9079.	Which of the following equals 1 atm pressure?
Answer» Which of the following equals 1 atm pressure?

Discussion

9080.	Which of the following remains unchanged when the sound wave travels from air to water?
Answer» Which of the following remains unchanged when the sound wave travels from air to water?

Discussion

9081.	A negatively charged ebonite rod is touched with the disc of a negatively charged gold leaf electroscope. What will be your observation?
Answer» A negatively charged ebonite rod is touched with the disc of a negatively charged gold leaf electroscope. What will be your observation?

Discussion

9082.	A car is moving with an initial velocity of 10 ms−1 with an acceleration of 5 ms−2 for a time interval of 10 seconds. Mass of the car is 20 kg, find average power of the car.
Answer» A car is moving with an initial velocity of $10 m s^{- 1}$ with an acceleration of $5 m s^{- 2}$ for a time interval of 10 seconds. Mass of the car is 20 kg, find average power of the car.

Discussion

9083.	If 3 concave mirrors are cut from a sphere and put in the given set up and if the sun lies on the principle axis of mirror 2 at infinity, then at what position will the images of the sun be formed by three mirrors?
Answer» If 3 concave mirrors are cut from a sphere and put in the given set up and if the sun lies on the principle axis of mirror 2 at infinity, then at what position will the images of the sun be formed by three mirrors?

9083.

If 3 concave mirrors are cut from a sphere and put in the given set up and if the sun lies on the principle axis of mirror 2 at infinity, then at what position will the images of the sun be formed by three mirrors?

Answer»

If 3 concave mirrors are cut from a sphere and put in the given set up and if the sun lies on the principle axis of mirror 2 at infinity, then at what position will the images of the sun be formed by three mirrors?

Discussion

9084.	The floating of an object in a fluid depends on
Answer» The floating of an object in a fluid depends on

Discussion

9085.	Question 4 (b) An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms: muscular, contact, non-contact, gravity, friction, shape, attraction (b) The force applied by the archer to stretch the bow is an example of ___ force.
Answer» Question 4 (b) An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms: muscular, contact, non-contact, gravity, friction, shape, attraction (b) The force applied by the archer to stretch the bow is an example of ___ force.

Discussion

9086.	The image formed by magnifying glass is
Answer» The image formed by magnifying glass is

Discussion

9087.	Both the sound and the light waves:
Answer» Both the sound and the light waves:

Discussion

9088.	Which of the following statements is/are true? 1. Forces in the same direction add up. 2. Two forces in opposite directions resulting in a net force, equal to their difference in the direction of the larger force. 3. Change in either direction or magnitude of force does not change its effect. 4. When more than one force is acting on an object, the effect on the object is due to a net force acting on it.
Answer» Which of the following statements is/are true? 1. Forces in the same direction add up. 2. Two forces in opposite directions resulting in a net force, equal to their difference in the direction of the larger force. 3. Change in either direction or magnitude of force does not change its effect. 4. When more than one force is acting on an object, the effect on the object is due to a net force acting on it.

9088.

Which of the following statements is/are true? 1. Forces in the same direction add up. 2. Two forces in opposite directions resulting in a net force, equal to their difference in the direction of the larger force. 3. Change in either direction or magnitude of force does not change its effect. 4. When more than one force is acting on an object, the effect on the object is due to a net force acting on it.

Answer»

Which of the following statements is/are true?

1. Forces in the same direction add up.

2. Two forces in opposite directions resulting in a net force, equal to their difference in the direction of the larger force.

3. Change in either direction or magnitude of force does not change its effect.

4. When more than one force is acting on an object, the effect on the object is due to a net force acting on it.

Discussion

9089.	Name the phenomenon due to which a swimming pool appears less deep than it really is.
Answer» Name the phenomenon due to which a swimming pool appears less deep than it really is.

Discussion

9090.	what is mirage? How is it formed? Explain.
Answer» what is mirage? How is it formed? Explain.

Discussion

9091.	Define sliding friction
Answer» Define sliding friction

Discussion

9092.	When does a man exert more pressure on the floor :while standing or while walking
Answer» When does a man exert more pressure on the floor :while standing or while walking

Discussion

9093.	What are the disadvantages of burning wood as fuel
Answer» What are the disadvantages of burning wood as fuel

Discussion

9094.	If atmospheric pressure is so large ,why we don't feel it?
Answer» If atmospheric pressure is so large ,why we don't feel it?

Discussion

9095.	Ball bearing is a device which usually converts
Answer» Ball bearing is a device which usually converts

Discussion

9096.	______ is the energy of random motion of constituent molecules constituting the body. It flows from a hot body to a cold body.
Answer» ______ is the energy of random motion of constituent molecules constituting the body. It flows from a hot body to a cold body.

Discussion

9097.	Choose the correct statement?
Answer» Choose the correct statement?

Discussion

9098.	A force of 10.5 N is applied at the end of a circular disc pivoted at center. The diameter of the disc is 0.5 m, calculate the amount of torque generated due to this acting force.
Answer» A force of $10.5 N$ is applied at the end of a circular disc pivoted at center. The diameter of the disc is $0.5 m$ , calculate the amount of torque generated due to this acting force.

Discussion

9099.	Can sound travel as transverse waves?
Answer» Can sound travel as transverse waves?

Discussion

9100.	Which of the following statements is/are false? a. Lightning is an electric spark on a huge scale which is caused by the accumulation of electric charges in the clouds. b. Electric charge is the property of matter which is responsible for the electrical phenomenon. c. The electric charges which appear on a plastic comb when rubbed with dry hair are the static electric charges which remain bound to the surface of an object and do not move.
Answer» Which of the following statements is/are false? a. Lightning is an electric spark on a huge scale which is caused by the accumulation of electric charges in the clouds. b. Electric charge is the property of matter which is responsible for the electrical phenomenon. c. The electric charges which appear on a plastic comb when rubbed with dry hair are the static electric charges which remain bound to the surface of an object and do not move.

9100.

Which of the following statements is/are false? a. Lightning is an electric spark on a huge scale which is caused by the accumulation of electric charges in the clouds. b. Electric charge is the property of matter which is responsible for the electrical phenomenon. c. The electric charges which appear on a plastic comb when rubbed with dry hair are the static electric charges which remain bound to the surface of an object and do not move.

Answer»

Which of the following statements is/are false?

a. Lightning is an electric spark on a huge scale which is caused by the accumulation of electric charges in the clouds.
b. Electric charge is the property of matter which is responsible for the electrical phenomenon.
c. The electric charges which appear on a plastic comb when rubbed with dry hair are the static electric charges which remain bound to the surface of an object and do not move.

Discussion

Explore topic-wise InterviewSolutions in .

What is a conservative force? Give examples.

Explain about repulsion between similar poles of 2 magnets. Is it a pull or a push?

What are the two physical factors that contribute to the density of water?

Question 3 (a) Express the following as cm using decimals: 5mm

State the laws of reflection. [3 MARKS]

why is it not advisable to carry a fountain pen while travelling in an aeroplane ?

Saturn will float in water. How and Why?

A satellite is revolving around the Earth in a well defined circular orbit, the gravitational force between the Earth and satellite is the centripetal force of the circular motion. What can we say about the motion of the satellite if the gravitational force becomes zero?

A 20 N force is applied on an area of 2.5 m2. Compute the pressure in Pa.8

Q TO GET NINE IMAGES OF A SINGLE OBJECT,WHEN PLACED ASYYMETRICAL BETWEEN TWO PLANE MIRRORS.ANGLE BETWWEN 2 PLANE MIRRORS SHOULD BE.

If the density of my body is less than that of water I should float on water, but as I go deeper in water , the water above exerts pressure on me, thereby it may increase my weight, then will I sink or again come back on the surface ?

When nuclear reaction occurs whether fission or fusion, it produces ___ amount of energy.

The image of the word EARTH as seen from the periscope would appear as:

Is it more comfortable to have thin straps for school bags or broad? Why is that? [2 MARKS]

What is the molecular formula of electric current and heat\energy not glucose? ​​​​​​

How to solve a problem with the number race to the power of some fraction

Shirt is related to Button in the same way as Shoes is related to ……?

How do tornadoes form? How can we predict it's occurance?

Which among the following is a past participle? The annoyed conductor refused to return the change to me and rudely asked me to alight before my stop.

What is the minimum temperature difference required between the water at surface and 2 km depth to efficiently operate ocean thermal energy conversion plants?

A gas occupies a volume of 300 cc at 27∘C and 620 mm pressure. Find the volume of the gas at 47∘C and 640 mm.

Calculate the depth at which pressure on a swimmer is 100 Pa. Given, density of water = 1000 kg/m³

A container is placed on a table has four holes. The XA,XB,XCand XD represent the horizontal distances covered by the liquid coming out from the holes A,B,C, and D respectively. Which of the following options is correct?

In the diagram, two friends are pushing a box on a frictionless surface as shown below. Which direction will the block move?

What is the net force on the block, if I am pushing the block with force, F on a table which is applying a frictional force, f ? [2 MARKS]

Rahul is standing still with a 5 kg weight on his head for 5 hours. The work done is .

Which of the following equals 1 atm pressure?

Which of the following remains unchanged when the sound wave travels from air to water?

A negatively charged ebonite rod is touched with the disc of a negatively charged gold leaf electroscope. What will be your observation?

A car is moving with an initial velocity of 10 ms−1 with an acceleration of 5 ms−2 for a time interval of 10 seconds. Mass of the car is 20 kg, find average power of the car.

If 3 concave mirrors are cut from a sphere and put in the given set up and if the sun lies on the principle axis of mirror 2 at infinity, then at what position will the images of the sun be formed by three mirrors?

The floating of an object in a fluid depends on

The image formed by magnifying glass is

Both the sound and the light waves:

Name the phenomenon due to which a swimming pool appears less deep than it really is.

what is mirage? How is it formed? Explain.

Define sliding friction

When does a man exert more pressure on the floor :while standing or while walking

What are the disadvantages of burning wood as fuel

If atmospheric pressure is so large ,why we don't feel it?

Ball bearing is a device which usually converts

______ is the energy of random motion of constituent molecules constituting the body. It flows from a hot body to a cold body.

Choose the correct statement?

A force of 10.5 N is applied at the end of a circular disc pivoted at center. The diameter of the disc is 0.5 m, calculate the amount of torque generated due to this acting force.

Can sound travel as transverse waves?

What is the molecular formula of electric current and heat\energy not glucose?