9478 + Interview Questions in Physics Page 122 InterviewSolution

6051.	What should an object do to produce sound?
Answer» What should an object do to produce sound?

Discussion

6052.	A car decreases its speed from 80 km/hr to 60 km/hr in 5 seconds. The acceleration of the car is :
Answer» A car decreases its speed from 80 km/hr to 60 km/hr in 5 seconds. The acceleration of the car is :

Discussion

6053.	What is force
Answer» What is force

Discussion

6054.	Two substances A and B have specific heats c and 2c respectively. If A and B are given Q and 4Q amounts of heat respectively, the change in their temperatures is same. If the mass of A is m, what is the mass of B?
Answer» Two substances $A$ and $B$ have specific heats $c$ and $2 c$ respectively. If $A$ and $B$ are given $Q$ and $4 Q$ amounts of heat respectively, the change in their temperatures is same. If the mass of $A$ is $m$ , what is the mass of $B$ ?

Discussion

6055.	I can't understand thrust.what is it?a quality of pressure?why is it needed when pressure is applied?for example.,when pressure of 20Nm-2 is applied,why is thrust needed?
Answer» I can't understand thrust.what is it?a quality of pressure?why is it needed when pressure is applied?for example.,when pressure of 20Nm^-2 is applied,why is thrust needed?

Discussion

6056.	How is it possible to detect the filling of a bucket under a water tap by hearing the sound standing at a distance ?
Answer» How is it possible to detect the filling of a bucket under a water tap by hearing the sound standing at a distance ?

Discussion

6057.	You will find it difficult to drag a mat if?
Answer» You will find it difficult to drag a mat if?

Discussion

6058.	How can earth pass through a wormhole without being destroyed?
Answer» How can earth pass through a wormhole without being destroyed?

Discussion

6059.	What are the types of the underlined clauses in the sentence? Whatever details she provided could not be used because they were incoherent.
Answer» What are the types of the underlined clauses in the sentence? Whatever details she provided could not be used because they were incoherent.

6059.

What are the types of the underlined clauses in the sentence? Whatever details she provided could not be used because they were incoherent.

Answer»

What are the types of the underlined clauses in the sentence?

Whatever details she provided could not be used because they were incoherent.

Discussion

6060.	What properties of a magnet at its atomic level gives it magnetic properties? Please explain with diagram
Answer» What properties of a magnet at its atomic level gives it magnetic properties? Please explain with diagram

Discussion

6061.	What is the reflection of the given figure in x - axis?
Answer» What is the reflection of the given figure in x - axis?

6061.

What is the reflection of the given figure in x - axis?

Answer»

What is the reflection of the given figure in x - axis?

Discussion

6062.	How can it be inferred that all the bodies in the universe attract each other because of gravitational force?
Answer» How can it be inferred that all the bodies in the universe attract each other because of gravitational force?

Discussion

6063.	Where should a lightning conductor make contact with the ground?
Answer» Where should a lightning conductor make contact with the ground?

Discussion

6064.	It was a rainy day in Bangalore. Rohit was sitting besides the window when he saw a lightning. He started his stop watch. He found that after 22 seconds of lightning its roaring was heard. Calculate the height of the clouds which caused this lightning. Given, Speed of light = 3×108m/s and Speed of sound = 340m/s.
Answer» It was a rainy day in Bangalore. Rohit was sitting besides the window when he saw a lightning. He started his stop watch. He found that after 22 seconds of lightning its roaring was heard. Calculate the height of the clouds which caused this lightning. Given, Speed of light = $3 \times 10^{8} m / s$ and Speed of sound = $340 m / s$ .

Discussion

6065.	An object of mass 2 kg has the potential energy of 980 J. The height of the object is. Take g=9.8 ms−2
Answer» An object of mass $2 k g$ has the potential energy of $980 J$ . The height of the object is. Take $g = 9.8 m s^{-} 2$

Discussion

6066.	What can be done to protect tall buildings from the damage of lightning?
Answer» What can be done to protect tall buildings from the damage of lightning?

Discussion

6067.	Why is shadow black in colour?
Answer» Why is shadow black in colour?

Discussion

6068.	How do friction produce heat?
Answer» How do friction produce heat?

Discussion

6069.	what is the si base unit of force
Answer» what is the si base unit of force

Discussion

6070.	Are electromagnetic waves- longitudinal or transverse
Answer» Are electromagnetic waves- longitudinal or transverse

Discussion

6071.	Which of the following works on the existence of atmospheric pressure?
Answer» Which of the following works on the existence of atmospheric pressure?

Discussion

6072.	1:- Write the difference between Distance and Displacement?
Answer» 1:- Write the difference between Distance and Displacement?

Discussion

6073.	Where does the moon come from?
Answer» Where does the moon come from?

Discussion

6074.	In concave lens the light ray ___________ after passing through it.
Answer» In concave lens the light ray ___________ after passing through it.

Discussion

6075.	Why there is a high amount of friction between polished surfaces?
Answer» Why there is a high amount of friction between polished surfaces?

Discussion

6076.	How come some objects are easily movable ? How much friction is applied in such cases?
Answer» How come some objects are easily movable ? How much friction is applied in such cases?

Discussion

6077.	Water and oil are taken in two separate beakers, the density of water is 1000 kg/m3 and the density of oil is 1500 kg/m3. At what depth, the pressure in oil beaker will be the same as the pressure at 150 cm in the water beaker? (Acceleration due to gravity = 10 m/s2)
Answer» Water and oil are taken in two separate beakers, the density of water is $1000 k g / m^{3}$ and the density of oil is $1500 k g / m^{3}$ . At what depth, the pressure in oil beaker will be the same as the pressure at $150 c m$ in the water beaker? (Acceleration due to gravity = $10 m / s^{2}$ )

Discussion

6078.	Write the numerical value of the atmospheric pressure on the earth surface in Pascal.
Answer» Write the numerical value of the atmospheric pressure on the earth surface in Pascal.

Discussion

6079.	If you take tap water and pass electricity then tap water will conduct electricity but why we were all told not to turn on/off the switches with wet hands. Statement 1: Tap water contains ions and is good conductor of electricity. Statement 2: Distilled water and urea does not contain ions.
Answer» If you take tap water and pass electricity then tap water will conduct electricity but why we were all told not to turn on/off the switches with wet hands. Statement 1: Tap water contains ions and is good conductor of electricity. Statement 2: Distilled water and urea does not contain ions.

Discussion

6080.	Which of the following is not an example of mechanical waves?
Answer» Which of the following is not an example of mechanical waves?

Discussion

6081.	When a plastic comb is rubbed with dry hair, the hair get positively charged by friction. In this process: (a) the hair lose some positive protons (b) the hair gain some positive protons (c) the hair lose some negative electrons (d) the hair gain some negative electrons
Answer» When a plastic comb is rubbed with dry hair, the hair get positively charged by friction. In this process: (a) the hair lose some positive protons (b) the hair gain some positive protons (c) the hair lose some negative electrons (d) the hair gain some negative electrons

6081.

When a plastic comb is rubbed with dry hair, the hair get positively charged by friction. In this process: (a) the hair lose some positive protons (b) the hair gain some positive protons (c) the hair lose some negative electrons (d) the hair gain some negative electrons

Answer»

When a plastic comb is rubbed with dry hair, the hair get positively charged by friction. In this process:

(a) the hair lose some positive protons

(b) the hair gain some positive protons

(c) the hair lose some negative electrons

(d) the hair gain some negative electrons

Discussion

6082.	Lead is mainly used in
Answer» Lead is mainly used in

Discussion

6083.	Give the advantage of using a right angle prism as a reflector rather than a plane mirror.
Answer» Give the advantage of using a right angle prism as a reflector rather than a plane mirror.

Discussion

6084.	Question 1 An electroscope is a device which is used to find if an object is (a) charged (b) magnetic (c) free of cracks (d) hot
Answer» Question 1 An electroscope is a device which is used to find if an object is (a) charged (b) magnetic (c) free of cracks (d) hot

6084.

Question 1 An electroscope is a device which is used to find if an object is (a) charged (b) magnetic (c) free of cracks (d) hot

Answer»

Question 1

An electroscope is a device which is used to find if an object is
(a) charged
(b) magnetic
(c) free of cracks
(d) hot

Discussion

6085.	In ancient times, sailors used to find direction by suspending a piece of______.
Answer» In ancient times, sailors used to find direction by suspending a piece of______.

Discussion

6086.	Consider the following statements: Statement 1: Cone cells are sensitive to dim light. Statement 2: Rod cells are sensitive to bright light. Choose the correct option:
Answer» Consider the following statements: Statement 1: Cone cells are sensitive to dim light. Statement 2: Rod cells are sensitive to bright light. Choose the correct option:

Discussion

6087.	Explain why water comes out more slowly from an upstairs tap than from a similar tap downstairs.
Answer» Explain why water comes out more slowly from an upstairs tap than from a similar tap downstairs.

Discussion

6088.	The velocity of a car changes from 3 m/s to 21 m/s in 6 seconds. What is the average acceleration of the car?
Answer» The velocity of a car changes from $3 m / s$ to $21 m / s$ in $6$ seconds. What is the average acceleration of the car?

Discussion

6089.	How many moon(s) does Mars have?
Answer» How many moon(s) does Mars have?

Discussion

6090.	Name two moons of mars and jupiter.
Answer» Name two moons of mars and jupiter.

Discussion

6091.	It is said that, when light hits a mirror and reflects, our mind predicts that it might be coming from a point opposite to the mirror. But when we use a camera to capture a image in the mirror, we see same as we see from our eyes. Why camera captures the same we see since it don't have brain to make it predict that light is coming from some other point?
Answer» It is said that, when light hits a mirror and reflects, our mind predicts that it might be coming from a point opposite to the mirror. But when we use a camera to capture a image in the mirror, we see same as we see from our eyes. Why camera captures the same we see since it don't have brain to make it predict that light is coming from some other point?

Discussion

6092.	The refractive index of kerosene is 1.44. Find the speed of light in kerosene.
Answer» The refractive index of kerosene is 1.44. Find the speed of light in kerosene.

Discussion

6093.	To stretch the bow, the archer applies a force that causes a change in its _________. The force applied by the archer to stretch the bow is an example of ____________ force. The type of force responsible for a change in the state of motion of the arrow is an example of a _________ force. While the arrow moves towards its target, the force acting on it are due to ___________ and that due to ____________ air.
Answer» To stretch the bow, the archer applies a force that causes a change in its _________. The force applied by the archer to stretch the bow is an example of ____________ force. The type of force responsible for a change in the state of motion of the arrow is an example of a _________ force. While the arrow moves towards its target, the force acting on it are due to ___________ and that due to ____________ air.

6093.

To stretch the bow, the archer applies a force that causes a change in its _. The force applied by the archer to stretch the bow is an example of force. The type of force responsible for a change in the state of motion of the arrow is an example of a _ force. While the arrow moves towards its target, the force acting on it are due to _ and that due to ______ air.

Answer»

To stretch the bow, the archer applies a force that causes a change in its _________.

The force applied by the archer to stretch the bow is an example of ____________ force.

The type of force responsible for a change in the state of motion of the arrow is an example of a _________ force.

While the arrow moves towards its target, the force acting on it are due to ___________ and that due to ____________ air.

Discussion

6094.	The apparent frequency of the whistle of an engine changes in the ratio 9:8 as the engine passes a stationary observer. If the velocity of the sound is 340 ms-1, then the velocity of the engine is:
Answer» The apparent frequency of the whistle of an engine changes in the ratio 9:8 as the engine passes a stationary observer. If the velocity of the sound is 340 ms^-1, then the velocity of the engine is:

Discussion

6095.	What is the consequences of an object both in rest and motion
Answer» What is the consequences of an object both in rest and motion

Discussion

6096.	How does the broad feet of camel helps them to walk easily
Answer» How does the broad feet of camel helps them to walk easily

Discussion

6097.	A particular star is at a distance of about 8.1×1013 km from the earth.assuming that the light travels at 3×108 m/sec.find how long does light takes from that star to reach the earth.
Answer» A particular star is at a distance of about 8.1×10¹³ km from the earth.assuming that the light travels at 3×10⁸ m/sec.find how long does light takes from that star to reach the earth.

Discussion

6098.	The SI unit of electric current is:
Answer» The SI unit of electric current is:

Discussion

6099.	If 1020 charges flow from the black body to the red body through the copper wire in 8 seconds, then find the current flowing between them.
Answer» If $10^{20}$ charges flow from the black body to the red body through the copper wire in 8 seconds, then find the current flowing between them.

Discussion

6100.	Two forces with equal magnitudes F act on a body and the magnitude of the resultant force is F/3. The angle between the two forces is
Answer» Two forces with equal magnitudes F act on a body and the magnitude of the resultant force is F/3. The angle between the two forces is

Discussion

Explore topic-wise InterviewSolutions in .

What should an object do to produce sound?

A car decreases its speed from 80 km/hr to 60 km/hr in 5 seconds. The acceleration of the car is :

What is force

Two substances A and B have specific heats c and 2c respectively. If A and B are given Q and 4Q amounts of heat respectively, the change in their temperatures is same. If the mass of A is m, what is the mass of B?

I can't understand thrust.what is it?a quality of pressure?why is it needed when pressure is applied?for example.,when pressure of 20Nm-2 is applied,why is thrust needed?

How is it possible to detect the filling of a bucket under a water tap by hearing the sound standing at a distance ?

You will find it difficult to drag a mat if?

How can earth pass through a wormhole without being destroyed?

What are the types of the underlined clauses in the sentence? Whatever details she provided could not be used because they were incoherent.

What properties of a magnet at its atomic level gives it magnetic properties? Please explain with diagram

What is the reflection of the given figure in x - axis?

How can it be inferred that all the bodies in the universe attract each other because of gravitational force?

Where should a lightning conductor make contact with the ground?

An object of mass 2 kg has the potential energy of 980 J. The height of the object is. Take g=9.8 ms−2

What can be done to protect tall buildings from the damage of lightning?

Why is shadow black in colour?

How do friction produce heat?

what is the si base unit of force

Are electromagnetic waves- longitudinal or transverse

Which of the following works on the existence of atmospheric pressure?

1:- Write the difference between Distance and Displacement?

Where does the moon come from?

In concave lens the light ray ___________ after passing through it.

Why there is a high amount of friction between polished surfaces?

How come some objects are easily movable ? How much friction is applied in such cases?

Water and oil are taken in two separate beakers, the density of water is 1000 kg/m3 and the density of oil is 1500 kg/m3. At what depth, the pressure in oil beaker will be the same as the pressure at 150 cm in the water beaker? (Acceleration due to gravity = 10 m/s2)

Write the numerical value of the atmospheric pressure on the earth surface in Pascal.

If you take tap water and pass electricity then tap water will conduct electricity but why we were all told not to turn on/off the switches with wet hands. Statement 1: Tap water contains ions and is good conductor of electricity. Statement 2: Distilled water and urea does not contain ions.

Which of the following is not an example of mechanical waves?

When a plastic comb is rubbed with dry hair, the hair get positively charged by friction. In this process: (a) the hair lose some positive protons (b) the hair gain some positive protons (c) the hair lose some negative electrons (d) the hair gain some negative electrons

Lead is mainly used in

Give the advantage of using a right angle prism as a reflector rather than a plane mirror.

Question 1 An electroscope is a device which is used to find if an object is (a) charged (b) magnetic (c) free of cracks (d) hot

In ancient times, sailors used to find direction by suspending a piece of______.

Consider the following statements: Statement 1: Cone cells are sensitive to dim light. Statement 2: Rod cells are sensitive to bright light. Choose the correct option:

Explain why water comes out more slowly from an upstairs tap than from a similar tap downstairs.

The velocity of a car changes from 3 m/s to 21 m/s in 6 seconds. What is the average acceleration of the car?

How many moon(s) does Mars have?

Name two moons of mars and jupiter.

The refractive index of kerosene is 1.44. Find the speed of light in kerosene.

The apparent frequency of the whistle of an engine changes in the ratio 9:8 as the engine passes a stationary observer. If the velocity of the sound is 340 ms-1, then the velocity of the engine is:

What is the consequences of an object both in rest and motion

How does the broad feet of camel helps them to walk easily

A particular star is at a distance of about 8.1×1013 km from the earth.assuming that the light travels at 3×108 m/sec.find how long does light takes from that star to reach the earth.

The SI unit of electric current is:

If 1020 charges flow from the black body to the red body through the copper wire in 8 seconds, then find the current flowing between them.

Two forces with equal magnitudes F act on a body and the magnitude of the resultant force is F/3. The angle between the two forces is