6277 + Interview Questions in Physics Page 83 InterviewSolution

4101.	Which of the following is not associated with the phenomenon of convection?
Answer» Which of the following is not associated with the phenomenon of convection?

Discussion

4102.	The present atomic mass scale is based on
Answer» The present atomic mass scale is based on

Discussion

4103.	Distinguish between a real and a virtual image.
Answer» Distinguish between a real and a virtual image.

Discussion

4104.	An image is said to be formed by a mirror when:
Answer» An image is said to be formed by a mirror when:

Discussion

4105.	Which of the following mode does not require medium for heat transfer?
Answer» Which of the following mode does not require medium for heat transfer?

Discussion

4106.	A cuboid shape aquarium is 100 cm long and 50 cm wide. It contains water up to a height of 30 cm. Find the volume of water in m3.0.15
Answer» A cuboid shape aquarium is $100 c m$ long and $50 c m$ wide. It contains water up to a height of $30 c m$ . Find the volume of water in $m^{3}$ . 0.15

Discussion

4107.	Shadow of an object is formed when:
Answer» Shadow of an object is formed when:

Discussion

4108.	Why is it necessary to minimise heat? Explain and provide an example.
Answer» Why is it necessary to minimise heat? Explain and provide an example.

Discussion

4109.	The increase in the speed of a car is proportional to the additional petrol put into the engine .Is it possible to accelerate a car without putting more or less petrol in to the engine
Answer» The increase in the speed of a car is proportional to the additional petrol put into the engine .Is it possible to accelerate a car without putting more or less petrol in to the engine

Discussion

4110.	The speed of work being done is measured in terms of:
Answer» The speed of work being done is measured in terms of:

Discussion

4111.	If you light a candle and keep one hand above the flame and other on the side, which feels hotter? Which mode of heat transfer takes place? [3 MARKS]
Answer» If you light a candle and keep one hand above the flame and other on the side, which feels hotter? Which mode of heat transfer takes place? [3 MARKS]

Discussion

4112.	Question 9 (a) Mark ‘T’ if the statement is true and ‘F’ if it is false: (a) To make a battery of two cells, the negative terminal of one cell is connected to the negative terminal of the other cell.
Answer» Question 9 (a) Mark ‘T’ if the statement is true and ‘F’ if it is false: (a) To make a battery of two cells, the negative terminal of one cell is connected to the negative terminal of the other cell.

Discussion

4113.	Give the relation between speed and time, if the distance to be traveled is same.
Answer» Give the relation between speed and time, if the distance to be traveled is same.

Discussion

4114.	A Rolling ball has which of the following type(s) of motion :
Answer» A Rolling ball has which of the following type(s) of motion :

Discussion

4115.	How electric bell is worked ?
Answer» How electric bell is worked ?

Discussion

4116.	What is the cause of lateral inversion?
Answer» What is the cause of lateral inversion?

Discussion

4117.	How long does it take for light from the sun to reach Earth?
Answer» How long does it take for light from the sun to reach Earth?

Discussion

4118.	The standard depth for recreational sea-diving has been fixed at 39 metres. For diving further below, we require special cladding and expertise. Why are these limits placed?
Answer» The standard depth for recreational sea-diving has been fixed at 39 metres. For diving further below, we require special cladding and expertise. Why are these limits placed?

Discussion

4119.	A convex lens is held in water. What would be the change in the focal length? [2 MARKS]
Answer» A convex lens is held in water. What would be the change in the focal length? [2 MARKS]

Discussion

4120.	In which of the following cases an eclipse occurs.
Answer» In which of the following cases an eclipse occurs.

Discussion

4121.	What is thermal equilibrium?
Answer» What is thermal equilibrium?

Discussion

4122.	Media is the plural form of
Answer» Media is the plural form of

Discussion

4123.	How is can we prove that angle of reflection = angle of incidence?
Answer» How is can we prove that angle of reflection = angle of incidence?

Discussion

4124.	If you are resting inside a car that is moving, are you in rest or motion? Justify your answer. [3 MARKS]
Answer» If you are resting inside a car that is moving, are you in rest or motion? Justify your answer. [3 MARKS]

Discussion

4125.	A light ray is incident on a flat surface, making an angle of 20∘ with the surface. Find (i) the angle between the incident ray and the reflected ray (ii) the angle between the reflected ray and the surface?
Answer» A light ray is incident on a flat surface, making an angle of $20^{\circ}$ with the surface. Find (i) the angle between the incident ray and the reflected ray (ii) the angle between the reflected ray and the surface?

Discussion

4126.	Why kink is important in thermometer
Answer» Why kink is important in thermometer

Discussion

4127.	Usually, the solid form of given substance has greater density and it is also heavier than the liquid form for the same volume. But in the case of water, its solid form is lighter than its liquid form. This is due to:
Answer» Usually, the solid form of given substance has greater density and it is also heavier than the liquid form for the same volume. But in the case of water, its solid form is lighter than its liquid form. This is due to:

Discussion

4128.	What happens to the motion of any body after some time, when the directions of it's velocity and acceleration are opposite to each other?
Answer» What happens to the motion of any body after some time, when the directions of it's velocity and acceleration are opposite to each other?

Discussion

4129.	What is Leyden jar? How does it work?
Answer» What is Leyden jar? How does it work?

Discussion

4130.	Select the appropriate electric circuit from the following.
Answer» Select the appropriate electric circuit from the following.

Discussion

4131.	Name a device which is used ti measure very small intervals of time in laboratory or in sports.
Answer» Name a device which is used ti measure very small intervals of time in laboratory or in sports.

Discussion

4132.	Why do our weight changes from place to place?
Answer» Why do our weight changes from place to place?

Discussion

4133.	If the angle of incidence is 30∘, then the angle of reflection will be
Answer» If the angle of incidence is 30 $^{\circ}$ , then the angle of reflection will be

4133.

If the angle of incidence is 30∘, then the angle of reflection will be

Answer»

If the angle of incidence is 30 $^{\circ}$ , then the angle of reflection will be

Discussion

4134.	Tungsten is used in incandescent bulbs because of its _________.
Answer» Tungsten is used in incandescent bulbs because of its _________.

Discussion

4135.	Which of the following are examples of lateral inversion?
Answer» Which of the following are examples of lateral inversion?

Discussion

4136.	Which amongst the following is a bi-convex lens?
Answer» Which amongst the following is a bi-convex lens?

Discussion

4137.	Give Reasons of the following a) when we want to warm a liqiud,we should warms it from below. b) Places close to the sea have a moderate temperature.
Answer» Give Reasons of the following a) when we want to warm a liqiud,we should warms it from below. b) Places close to the sea have a moderate temperature.

4137.

Give Reasons of the following a) when we want to warm a liqiud,we should warms it from below. b) Places close to the sea have a moderate temperature.

Answer»

Give Reasons of the following

a) when we want to warm a liqiud,we should warms it from below.

b) Places close to the sea have a moderate temperature.

Discussion

4138.	Consider two hot bodies B1 and B2. which have temperatures 100∘C and 80∘C respectively at t = 0 . The temperature of the surroundings is 40∘C . The ratio of the respective rates of cooling R1 and R2 of these two bodies at t = 0 will be
Answer» Consider two hot bodies $B_{1}$ and $B_{2}$ . which have temperatures $100^{\circ} C$ and $80^{\circ} C$ respectively at t = 0 . The temperature of the surroundings is $40^{\circ} C$ . The ratio of the respective rates of cooling $R_{1} a n d R_{2}$ of these two bodies at t = 0 will be

4138.

Consider two hot bodies B1 and B2. which have temperatures 100∘C and 80∘C respectively at t = 0 . The temperature of the surroundings is 40∘C . The ratio of the respective rates of cooling R1 and R2 of these two bodies at t = 0 will be

Answer»

Consider two hot bodies $B_{1}$ and $B_{2}$ . which have

temperatures $100^{\circ} C$ and $80^{\circ} C$ respectively at t = 0 .

The temperature of the surroundings is $40^{\circ} C$ .

The ratio of the respective rates of cooling $R_{1} a n d R_{2}$ of these two bodies at t = 0 will be

Discussion

4139.	The heat from the Sun reaches the Earth predominantly by which of the following modes of heat transfer?
Answer» The heat from the Sun reaches the Earth predominantly by which of the following modes of heat transfer?

Discussion

4140.	Calculate the number of oscillations a simple pendulum does in 2 minutes if its time period is 0.5 seconds.
Answer» Calculate the number of oscillations a simple pendulum does in 2 minutes if its time period is 0.5 seconds.

Discussion

4141.	A a scooterist covered a distance of 3 deca metres in 5 minutes .Calculate its speed in a)metres per second. b)cm per second. c)kilometres per hour.
Answer» A a scooterist covered a distance of 3 deca metres in 5 minutes .Calculate its speed in a)metres per second. b)cm per second. c)kilometres per hour.

Discussion

4142.	Find the odd one out: Statement 1: Table in the hall; Ceiling Fan; Falling Stone; Parked Car Statement 2: Flying Bee; Flying Butterfly; Running Cow; Sleeping Dog
Answer» Find the odd one out: Statement 1: Table in the hall; Ceiling Fan; Falling Stone; Parked Car Statement 2: Flying Bee; Flying Butterfly; Running Cow; Sleeping Dog

4142.

Find the odd one out: Statement 1: Table in the hall; Ceiling Fan; Falling Stone; Parked Car Statement 2: Flying Bee; Flying Butterfly; Running Cow; Sleeping Dog

Answer»

Find the odd one out:

Statement 1: Table in the hall; Ceiling Fan; Falling Stone; Parked Car
Statement 2: Flying Bee; Flying Butterfly; Running Cow; Sleeping Dog

Discussion

4143.	What is the cyclone and thunderstorms?
Answer» What is the cyclone and thunderstorms?

Discussion

4144.	Properties of heat,cold ,hot At microscopic scale , how will a hot body be diffeent from a cold Body? When does heat flow between two bodies ?
Answer» Properties of heat,cold ,hot At microscopic scale , how will a hot body be diffeent from a cold Body? When does heat flow between two bodies ?

4144.

Properties of heat,cold ,hot At microscopic scale , how will a hot body be diffeent from a cold Body? When does heat flow between two bodies ?

Answer»

Properties of heat,cold ,hot

At microscopic scale , how will a hot body be diffeent from a cold Body?

When does heat flow between two bodies ?

Discussion

4145.	Which of the following is the best reason why car engines are painted black?
Answer» Which of the following is the best reason why car engines are painted black?

Discussion

4146.	Though dams are used to store water, generate electricity and can transfer water to great distances. But mismanagement of the water can lead to which of the following?
Answer» Though dams are used to store water, generate electricity and can transfer water to great distances. But mismanagement of the water can lead to which of the following?

Discussion

4147.	From the above graph(refer to the previous question) find which city has the most variation of coliform count?
Answer» From the above graph(refer to the previous question) find which city has the most variation of coliform count?

Discussion

4148.	What is Metrology?
Answer» What is Metrology?

Discussion

4149.	why trekkers and mountaineers usually carry chlorine tablets with them?
Answer» why trekkers and mountaineers usually carry chlorine tablets with them?

Discussion

4150.	Why are cyclones formed over the ocean?
Answer» Why are cyclones formed over the ocean?

Discussion

Explore topic-wise InterviewSolutions in .

Which of the following is not associated with the phenomenon of convection?

The present atomic mass scale is based on

Distinguish between a real and a virtual image.

An image is said to be formed by a mirror when:

Which of the following mode does not require medium for heat transfer?

A cuboid shape aquarium is 100 cm long and 50 cm wide. It contains water up to a height of 30 cm. Find the volume of water in m3.0.15

Shadow of an object is formed when:

Why is it necessary to minimise heat? Explain and provide an example.

The increase in the speed of a car is proportional to the additional petrol put into the engine .Is it possible to accelerate a car without putting more or less petrol in to the engine

The speed of work being done is measured in terms of:

If you light a candle and keep one hand above the flame and other on the side, which feels hotter? Which mode of heat transfer takes place? [3 MARKS]

Question 9 (a) Mark ‘T’ if the statement is true and ‘F’ if it is false: (a) To make a battery of two cells, the negative terminal of one cell is connected to the negative terminal of the other cell.

Give the relation between speed and time, if the distance to be traveled is same.

A Rolling ball has which of the following type(s) of motion :

How electric bell is worked ?

What is the cause of lateral inversion?

How long does it take for light from the sun to reach Earth?

The standard depth for recreational sea-diving has been fixed at 39 metres. For diving further below, we require special cladding and expertise. Why are these limits placed?

A convex lens is held in water. What would be the change in the focal length? [2 MARKS]

In which of the following cases an eclipse occurs.

What is thermal equilibrium?

Media is the plural form of

How is can we prove that angle of reflection = angle of incidence?

If you are resting inside a car that is moving, are you in rest or motion? Justify your answer. [3 MARKS]

A light ray is incident on a flat surface, making an angle of 20∘ with the surface. Find (i) the angle between the incident ray and the reflected ray (ii) the angle between the reflected ray and the surface?

Why kink is important in thermometer

Usually, the solid form of given substance has greater density and it is also heavier than the liquid form for the same volume. But in the case of water, its solid form is lighter than its liquid form. This is due to:

What happens to the motion of any body after some time, when the directions of it's velocity and acceleration are opposite to each other?

What is Leyden jar? How does it work?

Select the appropriate electric circuit from the following.

Name a device which is used ti measure very small intervals of time in laboratory or in sports.

Why do our weight changes from place to place?

If the angle of incidence is 30∘, then the angle of reflection will be

Tungsten is used in incandescent bulbs because of its _________.

Which of the following are examples of lateral inversion?

Which amongst the following is a bi-convex lens?

Give Reasons of the following a) when we want to warm a liqiud,we should warms it from below. b) Places close to the sea have a moderate temperature.

Consider two hot bodies B1 and B2. which have temperatures 100∘C and 80∘C respectively at t = 0 . The temperature of the surroundings is 40∘C . The ratio of the respective rates of cooling R1 and R2 of these two bodies at t = 0 will be

The heat from the Sun reaches the Earth predominantly by which of the following modes of heat transfer?

Calculate the number of oscillations a simple pendulum does in 2 minutes if its time period is 0.5 seconds.

A a scooterist covered a distance of 3 deca metres in 5 minutes .Calculate its speed in a)metres per second. b)cm per second. c)kilometres per hour.

Find the odd one out: Statement 1: Table in the hall; Ceiling Fan; Falling Stone; Parked Car Statement 2: Flying Bee; Flying Butterfly; Running Cow; Sleeping Dog

What is the cyclone and thunderstorms?

Properties of heat,cold ,hot At microscopic scale , how will a hot body be diffeent from a cold Body? When does heat flow between two bodies ?

Which of the following is the best reason why car engines are painted black?

Though dams are used to store water, generate electricity and can transfer water to great distances. But mismanagement of the water can lead to which of the following?

From the above graph(refer to the previous question) find which city has the most variation of coliform count?

What is Metrology?

why trekkers and mountaineers usually carry chlorine tablets with them?

Why are cyclones formed over the ocean?