6277 + Interview Questions in Physics Page 112 InterviewSolution

5551.	More non-conventional sources of energy should be used. Give reason
Answer» More non-conventional sources of energy should be used. Give reason

Discussion

5552.	Sir.... Need some help on.. Why do object seem to being motion when we look outside moving car..... My under understandng is it is because of relative motion. .since I am a observer and in my frame outside object are in relative motion while I am in n driving car.... Is that right understand....
Answer» Sir.... Need some help on.. Why do object seem to being motion when we look outside moving car..... My under understandng is it is because of relative motion. .since I am a observer and in my frame outside object are in relative motion while I am in n driving car.... Is that right understand....

Discussion

5553.	When we pass electric current through the bulb, it glows; the bulb glows due to ___________
Answer» When we pass electric current through the bulb, it glows; the bulb glows due to ___________

Discussion

5554.	What property of a convex mirror gives it many uses, especially relating to safety?
Answer» What property of a convex mirror gives it many uses, especially relating to safety?

Discussion

5555.	What is meant by the term static electricity?
Answer» What is meant by the term static electricity?

Discussion

5556.	When we heat kerosene oil in a container, its level rises. This is an example of
Answer» When we heat kerosene oil in a container, its level rises. This is an example of

Discussion

5557.	The tracheal system comprises of a number of:
Answer» The tracheal system comprises of a number of:

Discussion

5558.	What is an MCB ? Why it is preferred over a fuse?
Answer» What is an MCB ? Why it is preferred over a fuse?

Discussion

5559.	Which of the following requires the use of electricity?
Answer» Which of the following requires the use of electricity?

Discussion

5560.	Why is a thermometer kept beneath the tongue?????????????????
Answer» Why is a thermometer kept beneath the tongue?????????????????

Discussion

5561.	The metal disc of an electric cell is the ___.
Answer» The metal disc of an electric cell is the ___.

Discussion

5562.	A train leaves station A and reaches Station B after 2 hours. If the distance between the station is 180 km, find the speed of the train in km/hr and m/s. [3 MARKS]
Answer» A train leaves station A and reaches Station B after 2 hours. If the distance between the station is 180 km, find the speed of the train in km/hr and m/s. [3 MARKS]

Discussion

5563.	An object that does not let any light to pass through it is called
Answer» An object that does not let any light to pass through it is called

Discussion

5564.	Why should we not touch a lighted bulb? Which phenomenon is responsible for it? [2 MARKS]
Answer» Why should we not touch a lighted bulb? Which phenomenon is responsible for it? [2 MARKS]

Discussion

5565.	Which of the following is/are true about electromagnets?
Answer» Which of the following is/are true about electromagnets?

Discussion

5566.	You want to construct a house which will keep you warm during winter and cool during summer.Which material will u choose for making?How should the wall of that house be constructed and roof of that house be constructed? -3m
Answer» You want to construct a house which will keep you warm during winter and cool during summer.Which material will u choose for making?How should the wall of that house be constructed and roof of that house be constructed? -3m

Discussion

5567.	How is the type of current that we receive in domestic circuit different from the one that runs a clock?
Answer» How is the type of current that we receive in domestic circuit different from the one that runs a clock?

Discussion

5568.	Question 6 Which property of a conducting wire is utilized in making electric fuse?
Answer» Question 6 Which property of a conducting wire is utilized in making electric fuse?

5568.

Question 6 Which property of a conducting wire is utilized in making electric fuse?

Answer»

Question 6

Which property of a conducting wire is utilized in making electric fuse?

Discussion

5569.	Why do we use a short wire in fuse and not long wire if we know that more is the length more is the heat produced
Answer» Why do we use a short wire in fuse and not long wire if we know that more is the length more is the heat produced

Discussion

5570.	___ of the light phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset.
Answer» ___ of the light phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset.

Discussion

5571.	How does heat transfer takes place by convection? Can heat transfer by convection takes place in solids?
Answer» How does heat transfer takes place by convection? Can heat transfer by convection takes place in solids?

Discussion

5572.	Explain electromagnet with a diagram. [5 MARKS]
Answer» Explain electromagnet with a diagram. [5 MARKS]

Discussion

5573.	A block having dimensions 2 m×2 m×3 m has mass of 24 kg. Calculate the density of the block.2
Answer» A block having dimensions $2 m \times 2 m \times 3 m$ has mass of $24 k g$ . Calculate the density of the block. 2

Discussion

5574.	A train is moving at a constant speed. If the train covers 50 km in 2 hours, how much time would it take to cover 100 km?
Answer» A train is moving at a constant speed. If the train covers $50 k m$ in $2$ hours, how much time would it take to cover $100 k m$ ?

Discussion

5575.	State the precautions of using laboratory thermometer.
Answer» State the precautions of using laboratory thermometer.

Discussion

5576.	Why are steel utensils provided with copper base ?
Answer» Why are steel utensils provided with copper base ?

Discussion

5577.	If P is a glowing spherical ball and the arrows depicts the direction of North, South, West and East. Then in which directions will the illuminating source emit more intensity of light?
Answer» If P is a glowing spherical ball and the arrows depicts the direction of North, South, West and East. Then in which directions will the illuminating source emit more intensity of light?

Discussion

5578.	The unit of quantity on which pitch of the sound depends is
Answer» The unit of quantity on which pitch of the sound depends is

Discussion

5579.	If a body is moving in a straight line but it keeps changing its speed, then the motion of the body is _____.
Answer» If a body is moving in a straight line but it keeps changing its speed, then the motion of the body is _____.

Discussion

5580.	To put one’s back to something means
Answer» To put one’s back to something means

Discussion

5581.	Which of the following is not an example of a rectilinear motion?
Answer» Which of the following is not an example of a rectilinear motion?

Discussion

5582.	Do we see all objects due to reflected light? [3 MARKS]
Answer» Do we see all objects due to reflected light? [3 MARKS]

Discussion

5583.	Which of the folowing is not an application of electroplating?
Answer» Which of the folowing is not an application of electroplating?

Discussion

5584.	A ship loaded with cargo submerges _____ in river water than in sea water.
Answer» A ship loaded with cargo submerges _____ in river water than in sea water.

Discussion

5585.	Out of the following devices which devices use electromagnets?
Answer» Out of the following devices which devices use electromagnets?

Discussion

5586.	Shishir was playing with a spring. He was compressing and releasing it. Suddenly he noticed that a ball, when kept on a spring, attains a certain height after it is compressed and released. What is the change of energy?
Answer» Shishir was playing with a spring. He was compressing and releasing it. Suddenly he noticed that a ball, when kept on a spring, attains a certain height after it is compressed and released. What is the change of energy?

Discussion

5587.	Reflection of (0,−12) in the y-axis is ___________
Answer» Reflection of $(0, - 12)$ in the y-axis is ___________

Discussion

5588.	When a golfer hits a ball from the tee, the ball is in contact with the club for 0.0005s. If the ball leaves the tee at a speed of 70m/s, what was the acceleration of the ball?
Answer» When a golfer hits a ball from the tee, the ball is in contact with the club for $0.0005 s$ . If the ball leaves the tee at a speed of $70 m / s$ , what was the acceleration of the ball?

Discussion

5589.	Assume that the total surface area of a human body is 1.6 m2 and that it radiates like an ideal radiator. Calculate the amount of energy radiated per second by the body if the body temperature is 37∘ C.Stefan constant σ is 6.0×10−8W/m2−K4.
Answer» Assume that the total surface area of a human body is 1.6 $m^{2}$ and that it radiates like an ideal radiator. Calculate the amount of energy radiated per second by the body if the body temperature is 37 $^{\circ}$ C.Stefan constant $σ$ is $6.0 \times 10^{- 8} W / m^{2} - K^{4}$ .

Discussion

5590.	Which of the following is true about air? (i) Air is a mixture of several gases. (ii) Air exerts pressure. (iii) The composition of air is uniform in all places.
Answer» Which of the following is true about air? (i) Air is a mixture of several gases. (ii) Air exerts pressure. (iii) The composition of air is uniform in all places.

Discussion

5591.	What is an electric cell? What are the various elements and functioning of an electric cell? [3 MARKS]
Answer» What is an electric cell? What are the various elements and functioning of an electric cell? [3 MARKS]

Discussion

5592.	sir /Mam can you please explain me what is the O in the concave convex mirror that we use
Answer» sir /Mam can you please explain me what is the O in the concave convex mirror that we use

Discussion

5593.	The phenomenon due to which selective colour reflection takes place from an object in the presence of white light is
Answer» The phenomenon due to which selective colour reflection takes place from an object in the presence of white light is

Discussion

5594.	When we use electromagnet to carry a car by crane won't the electromagnet attract the crane along with the car the moment you switch on the current???
Answer» When we use electromagnet to carry a car by crane won't the electromagnet attract the crane along with the car the moment you switch on the current???

Discussion

5595.	What causes convection current in air?
Answer» What causes convection current in air?

Discussion

5596.	Why only does a coiled wire and not a straight wire in an electical circuit behave like a magnet?
Answer» Why only does a coiled wire and not a straight wire in an electical circuit behave like a magnet?

Discussion

5597.	When standing barefoot in a cool room having both carpet and tiles flooring, the tile feels colder than the carpet. What can be the reason for this?
Answer» When standing barefoot in a cool room having both carpet and tiles flooring, the tile feels colder than the carpet. What can be the reason for this?

Discussion

5598.	What is the mechanism of a digital thermometer? Also, does it have a kink?
Answer» What is the mechanism of a digital thermometer? Also, does it have a kink?

Discussion

5599.	How many bricks, each measuring 25 cm×11.25 cm×6 cm, will be needed to build a wall of 8 m×6 m×22.5 cm?
Answer» How many bricks, each measuring $25 c m \times 11.25 c m \times 6 c m,$ will be needed to build a wall of $8 m \times 6 m \times 22.5 c m ?$

5599.

How many bricks, each measuring 25 cm×11.25 cm×6 cm, will be needed to build a wall of 8 m×6 m×22.5 cm?

Answer»

How many bricks, each measuring $25 c m \times 11.25 c m \times 6 c m,$ will be needed to build a wall of $8 m \times 6 m \times 22.5 c m ?$

Discussion

5600.	What are the consequences of using very fine cement?
Answer» What are the consequences of using very fine cement?

5600.

What are the consequences of using very fine cement?

Answer»

What are the consequences of using very fine cement?

Discussion

Explore topic-wise InterviewSolutions in .

More non-conventional sources of energy should be used. Give reason

Sir.... Need some help on.. Why do object seem to being motion when we look outside moving car..... My under understandng is it is because of relative motion. .since I am a observer and in my frame outside object are in relative motion while I am in n driving car.... Is that right understand....

When we pass electric current through the bulb, it glows; the bulb glows due to ___________

What property of a convex mirror gives it many uses, especially relating to safety?

What is meant by the term static electricity?

When we heat kerosene oil in a container, its level rises. This is an example of

The tracheal system comprises of a number of:

What is an MCB ? Why it is preferred over a fuse?

Which of the following requires the use of electricity?

Why is a thermometer kept beneath the tongue?????????????????

The metal disc of an electric cell is the ___.

A train leaves station A and reaches Station B after 2 hours. If the distance between the station is 180 km, find the speed of the train in km/hr and m/s. [3 MARKS]

An object that does not let any light to pass through it is called

Why should we not touch a lighted bulb? Which phenomenon is responsible for it? [2 MARKS]

Which of the following is/are true about electromagnets?

You want to construct a house which will keep you warm during winter and cool during summer.Which material will u choose for making?How should the wall of that house be constructed and roof of that house be constructed? -3m

How is the type of current that we receive in domestic circuit different from the one that runs a clock?

Question 6 Which property of a conducting wire is utilized in making electric fuse?

Why do we use a short wire in fuse and not long wire if we know that more is the length more is the heat produced

___ of the light phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset.

How does heat transfer takes place by convection? Can heat transfer by convection takes place in solids?

Explain electromagnet with a diagram. [5 MARKS]

A block having dimensions 2 m×2 m×3 m has mass of 24 kg. Calculate the density of the block.2

A train is moving at a constant speed. If the train covers 50 km in 2 hours, how much time would it take to cover 100 km?

State the precautions of using laboratory thermometer.

Why are steel utensils provided with copper base ?

If P is a glowing spherical ball and the arrows depicts the direction of North, South, West and East. Then in which directions will the illuminating source emit more intensity of light?

The unit of quantity on which pitch of the sound depends is

If a body is moving in a straight line but it keeps changing its speed, then the motion of the body is _____.

To put one’s back to something means

Which of the following is not an example of a rectilinear motion?

Do we see all objects due to reflected light? [3 MARKS]

Which of the folowing is not an application of electroplating?

A ship loaded with cargo submerges _____ in river water than in sea water.

Out of the following devices which devices use electromagnets?

Shishir was playing with a spring. He was compressing and releasing it. Suddenly he noticed that a ball, when kept on a spring, attains a certain height after it is compressed and released. What is the change of energy?

Reflection of (0,−12) in the y-axis is ___________

When a golfer hits a ball from the tee, the ball is in contact with the club for 0.0005s. If the ball leaves the tee at a speed of 70m/s, what was the acceleration of the ball?

Assume that the total surface area of a human body is 1.6 m2 and that it radiates like an ideal radiator. Calculate the amount of energy radiated per second by the body if the body temperature is 37∘ C.Stefan constant σ is 6.0×10−8W/m2−K4.

Which of the following is true about air? (i) Air is a mixture of several gases. (ii) Air exerts pressure. (iii) The composition of air is uniform in all places.

What is an electric cell? What are the various elements and functioning of an electric cell? [3 MARKS]

sir /Mam can you please explain me what is the O in the concave convex mirror that we use

The phenomenon due to which selective colour reflection takes place from an object in the presence of white light is

When we use electromagnet to carry a car by crane won't the electromagnet attract the crane along with the car the moment you switch on the current???

What causes convection current in air?

Why only does a coiled wire and not a straight wire in an electical circuit behave like a magnet?

When standing barefoot in a cool room having both carpet and tiles flooring, the tile feels colder than the carpet. What can be the reason for this?

What is the mechanism of a digital thermometer? Also, does it have a kink?

How many bricks, each measuring 25 cm×11.25 cm×6 cm, will be needed to build a wall of 8 m×6 m×22.5 cm?

What are the consequences of using very fine cement?