6277 + Interview Questions in Physics Page 111 InterviewSolution

5501.	The ray of light that reaches our eye after reflection is known as:
Answer» The ray of light that reaches our eye after reflection is known as:

Discussion

5502.	What is rectilinear propagation of light?
Answer» What is rectilinear propagation of light?

Discussion

5503.	How can we get electricity out of magnetism? Explain
Answer» How can we get electricity out of magnetism? Explain

Discussion

5504.	Sir. What is the difference between heat and light? Yours sincerely Shubhajeet Das
Answer» Sir. What is the difference between heat and light? Yours sincerely Shubhajeet Das

5504.

Sir. What is the difference between heat and light? Yours sincerely Shubhajeet Das

Answer»

Sir. What is the difference between heat and light?

Yours sincerely

Shubhajeet Das

Discussion

5505.	Whose rotation speed is faster , the Earth or the Moon
Answer» Whose rotation speed is faster , the Earth or the Moon

Discussion

5506.	How is sound produced in the larynx?
Answer» How is sound produced in the larynx?

Discussion

5507.	The distance covered by a body in unit time in a specified direction is called
Answer» The distance covered by a body in unit time in a specified direction is called

Discussion

5508.	Statement I : Virtual image cannot be projected on a screen. Statement II : Divergent rays cannot form an image.
Answer» Statement I : Virtual image cannot be projected on a screen. Statement II : Divergent rays cannot form an image.

5508.

Statement I : Virtual image cannot be projected on a screen. Statement II : Divergent rays cannot form an image.

Answer»

Statement I : Virtual image cannot be projected on a screen.

Statement II : Divergent rays cannot form an image.

Discussion

5509.	What is translatory motion? [1 MARK]
Answer» What is translatory motion? [1 MARK]

Discussion

5510.	John is observing his image in a plane mirror. The distance between the mirror and his image is 4 m. If he moves 1 m towards the mirror, then the distance between john and his image will be? [5 MARKS]
Answer» John is observing his image in a plane mirror. The distance between the mirror and his image is 4 m. If he moves 1 m towards the mirror, then the distance between john and his image will be? [5 MARKS]

Discussion

5511.	A circuit is said to be open circuit or complete when current flows through it. True/ False.
Answer» A circuit is said to be open circuit or complete when current flows through it. True/ False.

Discussion

5512.	There are two bodies X and Y with equal kinetic energy but different masses m and 4m respectively. The ratio of their linear momentum is-
Answer» There are two bodies X and Y with equal kinetic energy but different masses m and 4m respectively. The ratio of their linear momentum is-

Discussion

5513.	What is the relationship between wavelength and frequency of a wave, if its velocity is constant?
Answer» What is the relationship between wavelength and frequency of a wave, if its velocity is constant?

Discussion

5514.	If 100 J/s is the energy required for an appliance to run, what is the power consumed by it in watts, if it operates at 220 V?
Answer» If $100 J / s$ is the energy required for an appliance to run, what is the power consumed by it in watts, if it operates at $220 V$ ?

Discussion

5515.	The combination of red, green and blue colour gives
Answer» The combination of red, green and blue colour gives

Discussion

5516.	Which process is responsible for land and sea breeze? Explain the process and how it is different from radiation? [5 MARKS]
Answer» Which process is responsible for land and sea breeze? Explain the process and how it is different from radiation? [5 MARKS]

Discussion

5517.	Mirrors found in the fair, shows different images of same object.Some thick and thin and long and short.Why?
Answer» Mirrors found in the fair, shows different images of same object.Some thick and thin and long and short.Why?

Discussion

5518.	Two objects at the same temperature, one bigger than the other are placed in contact. Will heat be transfered from one object to another? Explain.
Answer» Two objects at the same temperature, one bigger than the other are placed in contact. Will heat be transfered from one object to another? Explain.

Discussion

5519.	What are the factors that are required for obtaining the shadow of an object?
Answer» What are the factors that are required for obtaining the shadow of an object?

Discussion

5520.	What is the mass of 2500ml of pure water at 4 degree Celsius
Answer» What is the mass of 2500ml of pure water at 4 degree Celsius

Discussion

5521.	A liquid which is a good conductor of heat is:
Answer» A liquid which is a good conductor of heat is:

Discussion

5522.	In barber's shop, two plane mirros are placed
Answer» In barber's shop, two plane mirros are placed

Discussion

5523.	It is said that light travels in a straight line. How will you prove this? What is the result of this? [3 MARKS]
Answer» It is said that light travels in a straight line. How will you prove this? What is the result of this? [3 MARKS]

Discussion

5524.	Which of the following statements is/are correct about uniform circular motion?
Answer» Which of the following statements is/are correct about uniform circular motion?

Discussion

5525.	Charge of number of electrons together make up 1 coulomb of charge.
Answer» Charge of number of electrons together make up 1 coulomb of charge.

Discussion

5526.	Why doesn't wet hair produce any charge on the comb?
Answer» Why doesn't wet hair produce any charge on the comb?

Discussion

5527.	When a South pole a magnet is brought near the North pole of a freely suspended magnetic needle, it will_____.
Answer» When a South pole a magnet is brought near the North pole of a freely suspended magnetic needle, it will_____.

Discussion

5528.	The radiator of a car is painted black. Why?
Answer» The radiator of a car is painted black. Why?

Discussion

5529.	It is a rule that as we go up,the air pressure decreases.And as we know,in high temperature the air is in low pressure .But as we go up the air becomes cold not hot.So whyvis that,as we go up the air pressure decreases.
Answer» It is a rule that as we go up,the air pressure decreases.And as we know,in high temperature the air is in low pressure .But as we go up the air becomes cold not hot.So whyvis that,as we go up the air pressure decreases.

Discussion

5530.	Suppose you have a plane mirror that reflects light. When light strikes the mirror, the light is reflected off the surface. The law of reflection says that: Statement 1: The angle of incidence (incoming ray) is equal to the angle of reflection (outgoing ray). Statement 2: The angle is measured from a perpendicular line to the surface called as Normal. Statement 3: Incident ray, reflected ray and the normal does not lie in the same plane. Statement 4: The law works for the plane as well as for curved surfaces.
Answer» Suppose you have a plane mirror that reflects light. When light strikes the mirror, the light is reflected off the surface. The law of reflection says that: Statement 1: The angle of incidence (incoming ray) is equal to the angle of reflection (outgoing ray). Statement 2: The angle is measured from a perpendicular line to the surface called as Normal. Statement 3: Incident ray, reflected ray and the normal does not lie in the same plane. Statement 4: The law works for the plane as well as for curved surfaces.

5530.

Suppose you have a plane mirror that reflects light. When light strikes the mirror, the light is reflected off the surface. The law of reflection says that: Statement 1: The angle of incidence (incoming ray) is equal to the angle of reflection (outgoing ray). Statement 2: The angle is measured from a perpendicular line to the surface called as Normal. Statement 3: Incident ray, reflected ray and the normal does not lie in the same plane. Statement 4: The law works for the plane as well as for curved surfaces.

Answer»

Suppose you have a plane mirror that reflects light. When light strikes the mirror, the light is reflected off the surface. The law of reflection says that:

Statement 1: The angle of incidence (incoming ray) is equal to the angle of reflection (outgoing ray).

Statement 2: The angle is measured from a perpendicular line to the surface called as Normal.

Statement 3: Incident ray, reflected ray and the normal does not lie in the same plane.

Statement 4: The law works for the plane as well as for curved surfaces.

Discussion

5531.	What is mercury what is clinical thermometer What is labrotary thermometer
Answer» What is mercury what is clinical thermometer What is labrotary thermometer

Discussion

5532.	What do you mean by the statement - 1kg of sugar occupies more volume than 1 kg of iron.
Answer» What do you mean by the statement - 1kg of sugar occupies more volume than 1 kg of iron.

Discussion

5533.	The phenomenon that light travels in straight lines is called ________.
Answer» The phenomenon that light travels in straight lines is called ________.

Discussion

5534.	When an unlit matchstick is held near to an extremely hot Bunsen burner, the matchstick does not get hot enough to light up. However, if the air gap were to be replaced by a piece of copper rod, the matchstick lights up easily. Which of the following could explain the above observation?
Answer» When an unlit matchstick is held near to an extremely hot Bunsen burner, the matchstick does not get hot enough to light up. However, if the air gap were to be replaced by a piece of copper rod, the matchstick lights up easily. Which of the following could explain the above observation?

Discussion

5535.	What can you say about the motion of the minute hand of a clock kept in a moving bus as seen from the ground?
Answer» What can you say about the motion of the minute hand of a clock kept in a moving bus as seen from the ground?

Discussion

5536.	One atmospheric pressure is equal to 101325 Newton/square metre. That is around 10 tonnes of mass over 1 square metre area. How are we able to bear such a huge burden over our heads?
Answer» One atmospheric pressure is equal to 101325 Newton/square metre. That is around 10 tonnes of mass over 1 square metre area. How are we able to bear such a huge burden over our heads?

Discussion

5537.	A rectangular cardboard of dimension 20m × 10m is placed on a table. 4 squares of side 2.5m are cut out from the corners and the 4 sides are folded . Find the surface area of the resulting figure which is to be painted on all the sides.
Answer» A rectangular cardboard of dimension 20m $\times$ 10m is placed on a table. 4 squares of side 2.5m are cut out from the corners and the 4 sides are folded . Find the surface area of the resulting figure which is to be painted on all the sides.

5537.

A rectangular cardboard of dimension 20m × 10m is placed on a table. 4 squares of side 2.5m are cut out from the corners and the 4 sides are folded . Find the surface area of the resulting figure which is to be painted on all the sides.

Answer»

A rectangular cardboard of dimension 20m $\times$ 10m is placed on a table. 4 squares of side 2.5m are cut out from the corners and the 4 sides are folded . Find the surface area of the resulting figure which is to be painted on all the sides.

Discussion

5538.	Abdul while driving to school computes his average speed to be 20 km/hr . on his return trip there is less traffic and his average speed is 30 km/hr . find the average speed of Abdul's trip.
Answer» Abdul while driving to school computes his average speed to be 20 km/hr . on his return trip there is less traffic and his average speed is 30 km/hr . find the average speed of Abdul's trip.

Discussion

5539.	The temperatures of the two outer surfaces of a composite slab, consisting of two materials having coefficients of thermal conductivity K and 2K and thickness x and 4x, respectively, are T2 and T1 (T2>T1). The rate of heat transfer through the slab, in a steady state is (A(T2−T1)Kx)f, with f equal to
Answer» The temperatures of the two outer surfaces of a composite slab, consisting of two materials having coefficients of thermal conductivity K and 2K and thickness x and 4x, respectively, are $T_{2}$ and $T_{1}$ ( $T_{2} > T_{1}$ ). The rate of heat transfer through the slab, in a steady state is $(\frac{A (T_{2} - T_{1}) K}{x}) f$ , with f equal to

Discussion

5540.	Suppose you and your friend are sitting in a moving car. Then your friend is in motion with respect to ___.
Answer» Suppose you and your friend are sitting in a moving car. Then your friend is in motion with respect to ___.

Discussion

5541.	What is focal length of a plane mirror?
Answer» What is focal length of a plane mirror?

Discussion

5542.	If the temperature of the sun becomes twice its present temperature, then
Answer» If the temperature of the sun becomes twice its present temperature, then

Discussion

5543.	What are the uses of discharge tube?
Answer» What are the uses of discharge tube?

Discussion

5544.	Which of the following forces is necessary for horizontal motion on the ground?
Answer» Which of the following forces is necessary for horizontal motion on the ground?

Discussion

5545.	A blackbody of surface area 1 cm2 is placed inside an enclosure. The enclosure has a constant temperature 27∘ C and the blackbody is maintained at 327 ∘ C by heating it electrically. What electric power is needed to maintain the temperature?σ=6.0×10−8W/m2−K4.
Answer» A blackbody of surface area 1 $c m^{2}$ is placed inside an enclosure. The enclosure has a constant temperature 27 $^{\circ}$ C and the blackbody is maintained at 327 $^{\circ}$ C by heating it electrically. What electric power is needed to maintain the temperature? $σ = 6.0 \times 10^{- 8} W / m^{2} - K^{4}$ .

Discussion

5546.	In which of the following states, atoms are closer to each other?
Answer» In which of the following states, atoms are closer to each other?

Discussion

5547.	How MCBs prevent the damage of household electric items?
Answer» How MCBs prevent the damage of household electric items?

Discussion

5548.	Which of the following statements is correct about the solar eclipse?
Answer» Which of the following statements is correct about the solar eclipse?

Discussion

5549.	Why is air a bad conductor
Answer» Why is air a bad conductor

Discussion

5550.	A swinging pendulum has which type of energy?
Answer» A swinging pendulum has which type of energy?

Discussion

Explore topic-wise InterviewSolutions in .

The ray of light that reaches our eye after reflection is known as:

What is rectilinear propagation of light?

How can we get electricity out of magnetism? Explain

Sir. What is the difference between heat and light? Yours sincerely Shubhajeet Das

Whose rotation speed is faster , the Earth or the Moon

How is sound produced in the larynx?

The distance covered by a body in unit time in a specified direction is called

Statement I : Virtual image cannot be projected on a screen. Statement II : Divergent rays cannot form an image.

What is translatory motion? [1 MARK]

John is observing his image in a plane mirror. The distance between the mirror and his image is 4 m. If he moves 1 m towards the mirror, then the distance between john and his image will be? [5 MARKS]

A circuit is said to be open circuit or complete when current flows through it. True/ False.

There are two bodies X and Y with equal kinetic energy but different masses m and 4m respectively. The ratio of their linear momentum is-

What is the relationship between wavelength and frequency of a wave, if its velocity is constant?

If 100 J/s is the energy required for an appliance to run, what is the power consumed by it in watts, if it operates at 220 V?

The combination of red, green and blue colour gives

Which process is responsible for land and sea breeze? Explain the process and how it is different from radiation? [5 MARKS]

Mirrors found in the fair, shows different images of same object.Some thick and thin and long and short.Why?

Two objects at the same temperature, one bigger than the other are placed in contact. Will heat be transfered from one object to another? Explain.

What are the factors that are required for obtaining the shadow of an object?​

What is the mass of 2500ml of pure water at 4 degree Celsius

A liquid which is a good conductor of heat is:

In barber's shop, two plane mirros are placed

It is said that light travels in a straight line. How will you prove this? What is the result of this? [3 MARKS]

Which of the following statements is/are correct about uniform circular motion?

Charge of number of electrons together make up 1 coulomb of charge.

Why doesn't wet hair produce any charge on the comb?

When a South pole a magnet is brought near the North pole of a freely suspended magnetic needle, it will_____.

The radiator of a car is painted black. Why?

It is a rule that as we go up,the air pressure decreases.And as we know,in high temperature the air is in low pressure .But as we go up the air becomes cold not hot.So whyvis that,as we go up the air pressure decreases.

What is mercury what is clinical thermometer What is labrotary thermometer

What do you mean by the statement - 1kg of sugar occupies more volume than 1 kg of iron.

The phenomenon that light travels in straight lines is called ________.

When an unlit matchstick is held near to an extremely hot Bunsen burner, the matchstick does not get hot enough to light up. However, if the air gap were to be replaced by a piece of copper rod, the matchstick lights up easily. Which of the following could explain the above observation?

What can you say about the motion of the minute hand of a clock kept in a moving bus as seen from the ground?

One atmospheric pressure is equal to 101325 Newton/square metre. That is around 10 tonnes of mass over 1 square metre area. How are we able to bear such a huge burden over our heads?

A rectangular cardboard of dimension 20m × 10m is placed on a table. 4 squares of side 2.5m are cut out from the corners and the 4 sides are folded . Find the surface area of the resulting figure which is to be painted on all the sides.

Abdul while driving to school computes his average speed to be 20 km/hr . on his return trip there is less traffic and his average speed is 30 km/hr . find the average speed of Abdul's trip.

Suppose you and your friend are sitting in a moving car. Then your friend is in motion with respect to ___.

What is focal length of a plane mirror?

If the temperature of the sun becomes twice its present temperature, then

What are the uses of discharge tube?

Which of the following forces is necessary for horizontal motion on the ground?

A blackbody of surface area 1 cm2 is placed inside an enclosure. The enclosure has a constant temperature 27∘ C and the blackbody is maintained at 327 ∘ C by heating it electrically. What electric power is needed to maintain the temperature?σ=6.0×10−8W/m2−K4.

In which of the following states, atoms are closer to each other?

How MCBs prevent the damage of household electric items?

Which of the following statements is correct about the solar eclipse?

Why is air a bad conductor

A swinging pendulum has which type of energy?

What are the factors that are required for obtaining the shadow of an object?