9478 + Interview Questions in Physics

1.	Describe the method of charging a conductor by induction.
Answer» Describe the method of charging a conductor by induction.

Discussion

2.	Why do you feel a resistance when an empty mug is pushed into a bucket of water?
Answer» Why do you feel a resistance when an empty mug is pushed into a bucket of water?

Discussion

3.	An electrical appliance is rated as 90 W - 225 V. How much current will flow through the appliance when in use?
Answer» An electrical appliance is rated as 90 W - 225 V. How much current will flow through the appliance when in use?

3.

An electrical appliance is rated as 90 W - 225 V. How much current will flow through the appliance when in use?

Answer»

An electrical appliance is rated as 90 W - 225 V. How much current will flow through the appliance when in use?

Discussion

4.	When two charged glass rods, after being rubbed with a silk cloth are brought towards each other, they ___.
Answer» When two charged glass rods, after being rubbed with a silk cloth are brought towards each other, they ___.

Discussion

5.	When the rock sliding on the sloppy region and settles at the lower side, it is called ___.
Answer» When the rock sliding on the sloppy region and settles at the lower side, it is called ___.

Discussion

6.	A chemical change in a solution can be identified by
Answer» A chemical change in a solution can be identified by

Discussion

7.	Total internal reflection of a ray of light is possible when the (ic = critical angle, i = angle of incidence)
Answer» Total internal reflection of a ray of light is possible when the ( $i_{c}$ = critical angle, $i$ = angle of incidence)

Discussion

8.	How many images are formed if the plane mirrors are kept at an angle of 90∘?
Answer» How many images are formed if the plane mirrors are kept at an angle of $90^{\circ}$ ?

Discussion

9.	Which of the following is not an outer planet?
Answer» Which of the following is not an outer planet?

9.

Which of the following is not an outer planet?

Answer»

Which of the following is not an outer planet?

Discussion

10.	Lightning is a/an ___ on a huge scale.
Answer» Lightning is a/an ___ on a huge scale.

Discussion

11.	Choose the statements which state laws of reflection correctly. Statement 1: Angle of incidence is greater than the angle of reflection. Statement 2: Angle of incidence is less than the angle of reflection. Statement 3: Angle of incidence is equal to the angle of reflection. Statement 4: The incident ray, the normal at the point of incidence and the reflected ray all lie in the same plane.
Answer» Choose the statements which state laws of reflection correctly. Statement 1: Angle of incidence is greater than the angle of reflection. Statement 2: Angle of incidence is less than the angle of reflection. Statement 3: Angle of incidence is equal to the angle of reflection. Statement 4: The incident ray, the normal at the point of incidence and the reflected ray all lie in the same plane.

11.

Choose the statements which state laws of reflection correctly. Statement 1: Angle of incidence is greater than the angle of reflection. Statement 2: Angle of incidence is less than the angle of reflection. Statement 3: Angle of incidence is equal to the angle of reflection. Statement 4: The incident ray, the normal at the point of incidence and the reflected ray all lie in the same plane.

Answer»

Choose the statements which state laws of reflection correctly.

Statement 1: Angle of incidence is greater than the angle of reflection.

Statement 2: Angle of incidence is less than the angle of reflection.

Statement 3: Angle of incidence is equal to the angle of reflection.

Statement 4: The incident ray, the normal at the point of incidence and the reflected ray all lie in the same plane.

Discussion

12.	Water is flowing steadily through a horizontal pipe. At the narrow part of pipe
Answer» Water is flowing steadily through a horizontal pipe. At the narrow part of pipe

Discussion

13.	Why does the friction increase when two surfaces are pressed against each other harder? [3 MARKS]
Answer» Why does the friction increase when two surfaces are pressed against each other harder? [3 MARKS]

Discussion

14.	We do we not feel uneasy even under the enormous atmospheric pressure. Give a reason.
Answer» We do we not feel uneasy even under the enormous atmospheric pressure. Give a reason.

Discussion

15.	When a ball is dropped from a height, its speed increases gradually. Name the force which causes this change in speed.
Answer» When a ball is dropped from a height, its speed increases gradually. Name the force which causes this change in speed.

Discussion

16.	Differentiate between the melting point and boiling point, giving at least one example of each.
Answer» Differentiate between the melting point and boiling point, giving at least one example of each.

Discussion

17.	The melting point of the substances which contract on melting (like ice) decreases by the ______ in pressure.
Answer» The melting point of the substances which contract on melting (like ice) decreases by the ______ in pressure.

Discussion

18.	Potential difference is provided in an electric circuit by ______________.
Answer» Potential difference is provided in an electric circuit by ______________.

Discussion

19.	(a) What is the name of the strings in the human voice box which vibrate to produce sound? (b) What makes these strings vibrate?
Answer» (a) What is the name of the strings in the human voice box which vibrate to produce sound? (b) What makes these strings vibrate?

19.

(a) What is the name of the strings in the human voice box which vibrate to produce sound? (b) What makes these strings vibrate?

Answer»

(a) What is the name of the strings in the human voice box which vibrate to produce sound?

(b) What makes these strings vibrate?

Discussion

20.	It is said that if a spaceship which is stationary and a spaceship which is moving send out a laser light waves, both the waves will cover the distance in same time irrespective of the moving spaceship. Why does this happen?
Answer» It is said that if a spaceship which is stationary and a spaceship which is moving send out a laser light waves, both the waves will cover the distance in same time irrespective of the moving spaceship. Why does this happen?

Discussion

21.	Find the odd one out.
Answer» Find the odd one out.

Discussion

22.	What is the area of the given figure? (All dimensions are in cm)
Answer» What is the area of the given figure? (All dimensions are in $c m$ )

Discussion

23.	A ball is rolled on the sand, on road and on an ice surface. In which of the case will it move the farthest?
Answer» A ball is rolled on the sand, on road and on an ice surface. In which of the case will it move the farthest?

Discussion

24.	The frequency of a vibrating body is 25 Hz. Calculate its time period (in sec).0.04
Answer» The frequency of a vibrating body is $25 H z$ . Calculate its time period (in $s e c$ ). 0.04

Discussion

25.	What is the major function of aqueous humour?
Answer» What is the major function of aqueous humour?

Discussion

26.	What are the 2 important qunatities that describes sound
Answer» What are the 2 important qunatities that describes sound

Discussion

27.	Convert 10 N into C.G.S unit (dyne).
Answer» Convert $10 N$ into C.G.S unit (dyne).

Discussion

28.	When a glass rod is rubbed with a piece of silk cloth the rod
Answer» When a glass rod is rubbed with a piece of silk cloth the rod

Discussion

29.	If a metallic wire of resistance R is melted and recast to half of its length, the new resistance of the wire will be?
Answer» If a metallic wire of resistance R is melted and recast to half of its length, the new resistance of the wire will be?

Discussion

30.	Which of the following is the most important characteristic that needs to be looked at before choosing an electrolyte?
Answer» Which of the following is the most important characteristic that needs to be looked at before choosing an electrolyte?

Discussion

31.	Why friction even exists between two smooth surfaces? Why force of friction is greater if a rough surface is involved? [3 MARKS]
Answer» Why friction even exists between two smooth surfaces? Why force of friction is greater if a rough surface is involved? [3 MARKS]

Discussion

32.	What is a prism ? Draw a ray diagram to show the refraction of a light ray through a prism.
Answer» What is a prism ? Draw a ray diagram to show the refraction of a light ray through a prism.

Discussion

33.	If even the bones are made of cells and all other parts of an Living organism are also made up of cells then why do we always find the bones of pre-hestoric animals why we cannot find there rest body after all both of them are made up of cells then why does one type of cell remains for such a long time and the other one gets disappeared what's the reason?
Answer» If even the bones are made of cells and all other parts of an Living organism are also made up of cells then why do we always find the bones of pre-hestoric animals why we cannot find there rest body after all both of them are made up of cells then why does one type of cell remains for such a long time and the other one gets disappeared what's the reason?

33.

If even the bones are made of cells and all other parts of an Living organism are also made up of cells then why do we always find the bones of pre-hestoric animals why we cannot find there rest body after all both of them are made up of cells then why does one type of cell remains for such a long time and the other one gets disappeared what's the reason?

Answer»

If even the bones are made of cells and all other parts of an

Living organism are also made up of cells then why do we always find the bones of pre-hestoric animals why we cannot find there rest body after all both of them are made up of cells then why does one type of cell remains for such a long time and the other one gets disappeared what's the reason?

Discussion

34.	Q64. Hyperloop technology was recently in news. With reference to the technology, which of the following statement(s) is/are correct? 1. It is a system of magnetically levitating capsules that are sent at high speeds through high pressure tubes. 2. Recently it has been implemented for practical use in USA for commercial purpose Select the correct answer using the codes given.
Answer» Q64. Hyperloop technology was recently in news. With reference to the technology, which of the following statement(s) is/are correct? 1. It is a system of magnetically levitating capsules that are sent at high speeds through high pressure tubes. 2. Recently it has been implemented for practical use in USA for commercial purpose Select the correct answer using the codes given.

34.

Q64. Hyperloop technology was recently in news. With reference to the technology, which of the following statement(s) is/are correct? 1. It is a system of magnetically levitating capsules that are sent at high speeds through high pressure tubes. 2. Recently it has been implemented for practical use in USA for commercial purpose Select the correct answer using the codes given.

Answer»

Q64. Hyperloop technology was recently in news. With reference to the technology, which of the following statement(s) is/are correct?

1. It is a system of magnetically levitating capsules that are sent at high speeds through high pressure tubes.

2. Recently it has been implemented for practical use in USA for commercial purpose

Select the correct answer using the codes given.

Discussion

35.	How is an atom electrically stable?
Answer» How is an atom electrically stable?

Discussion

36.	Does light need any medium to travel? If yes what's that? If No then what is the mechanism of traveling of light?
Answer» Does light need any medium to travel? If yes what's that? If No then what is the mechanism of traveling of light?

Discussion

37.	Sound is a:
Answer» Sound is a:

Discussion

38.	How does a big balloon with a basket full of people manage to float in the air
Answer» How does a big balloon with a basket full of people manage to float in the air

Discussion

39.	Question 11 Your parents are going to buy a house. They have been offered one on the roadside and another three lanes away from the roadside. Which house would you suggest your parents should buy? Explain.
Answer» Question 11 Your parents are going to buy a house. They have been offered one on the roadside and another three lanes away from the roadside. Which house would you suggest your parents should buy? Explain.

Discussion

40.	Fill in the blanks with an appropriate adverb. Stentor screamed ________ than anyone in the Greek army.
Answer» Fill in the blanks with an appropriate adverb. Stentor screamed ________ than anyone in the Greek army.

40.

Fill in the blanks with an appropriate adverb. Stentor screamed ________ than anyone in the Greek army.

Answer»

Fill in the blanks with an appropriate adverb.

Stentor screamed ________ than anyone in the Greek army.

Discussion

41.	Do sound can change its medium like light?
Answer» Do sound can change its medium like light?

Discussion

42.	Choose the correct option according to the angle between force and direction of displacement. Coloumn1Coloumn21. θ is zeroi) Work done is always zero2. θ is less than 900ii) Work done is non−negative 3. θ is greater than 900iii) Work done is always positive4. θ is 900iv) Work done is never positive
Answer» Choose the correct option according to the angle between force and direction of displacement. $\begin{matrix} C o l o u m n 1 & C o l o u m n 2 1. θ i s z e r o & i) W o r k d o n e i s a l w a y s z e r o 2. θ i s l e s s t h a n 90^{0} & i i) W o r k d o n e i s n o n - n e g a t i v e 3. θ i s g r e a t e r t h a n 90^{0} & i i i) W o r k d o n e i s a l w a y s p o s i t i v e 4. θ i s 90^{0} & i v) W o r k d o n e i s n e v e r p o s i t i v e \end{matrix}$

Discussion

43.	Find the eqivalent temperature of 20∘C in degree Fahrenheit.
Answer» Find the eqivalent temperature of $20^{\circ} C$ in degree Fahrenheit.

Discussion

44.	A child drops a toy from the top of a building, it takes 1 s to reach the ground. Find the height of the building and the average speed of the toy respectively. (Take g = 10 ms−2)
Answer» A child drops a toy from the top of a building, it takes 1 s to reach the ground. Find the height of the building and the average speed of the toy respectively. (Take g = $10 m s^{- 2}$ )

Discussion

45.	Define 'state of motion' of an object. Name the 'agent' which can change the state of motion of an object.
Answer» Define 'state of motion' of an object. Name the 'agent' which can change the state of motion of an object.

Discussion

46.	How do airbags reduce damage to passengers during an accident?
Answer» How do airbags reduce damage to passengers during an accident?

Discussion

47.	There is a square plot with side length equal to 13 m. A farmer wanted to grow grass on half his field and plough the remaining land to a depth of 40 cm. Find the volume of land ploughed?
Answer» There is a square plot with side length equal to $13 m$ . A farmer wanted to grow grass on half his field and plough the remaining land to a depth of $40 c m$ . Find the volume of land ploughed?

Discussion

48.	Suppose your writing table (or desk) is titled a little. A book kept on the table starts sliding down. Draw a diagram to show the direction of force of friction acting on the book.
Answer» Suppose your writing table (or desk) is titled a little. A book kept on the table starts sliding down. Draw a diagram to show the direction of force of friction acting on the book.

Discussion

49.	(a) How can you show that a sounding tabla is vibrating? (b) On what factor does the loudness of a sound depend?
Answer» (a) How can you show that a sounding tabla is vibrating? (b) On what factor does the loudness of a sound depend?

49.

(a) How can you show that a sounding tabla is vibrating? (b) On what factor does the loudness of a sound depend?

Answer»

(a) How can you show that a sounding tabla is vibrating?

(b) On what factor does the loudness of a sound depend?

Discussion

50.	One morning after sunrise, Vijay and Sakshi were standing in a town with their backs towards each other. Vijay’s shadow fell exactly towards his left hand side. Which direction was Sakshi facing?
Answer» One morning after sunrise, Vijay and Sakshi were standing in a town with their backs towards each other. Vijay’s shadow fell exactly towards his left hand side. Which direction was Sakshi facing?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Describe the method of charging a conductor by induction.

Why do you feel a resistance when an empty mug is pushed into a bucket of water?

An electrical appliance is rated as 90 W - 225 V. How much current will flow through the appliance when in use?

When two charged glass rods, after being rubbed with a silk cloth are brought towards each other, they ___.

When the rock sliding on the sloppy region and settles at the lower side, it is called ___.

A chemical change in a solution can be identified by

Total internal reflection of a ray of light is possible when the (ic = critical angle, i = angle of incidence)

How many images are formed if the plane mirrors are kept at an angle of 90∘?

Which of the following is not an outer planet?

Lightning is a/an ___ on a huge scale.

Water is flowing steadily through a horizontal pipe. At the narrow part of pipe

Why does the friction increase when two surfaces are pressed against each other harder? [3 MARKS]

We do we not feel uneasy even under the enormous atmospheric pressure. Give a reason.

When a ball is dropped from a height, its speed increases gradually. Name the force which causes this change in speed.

Differentiate between the melting point and boiling point, giving at least one example of each.

The melting point of the substances which contract on melting (like ice) decreases by the ______ in pressure.

Potential difference is provided in an electric circuit by ______________.

(a) What is the name of the strings in the human voice box which vibrate to produce sound? (b) What makes these strings vibrate?

It is said that if a spaceship which is stationary and a spaceship which is moving send out a laser light waves, both the waves will cover the distance in same time irrespective of the moving spaceship. Why does this happen?

Find the odd one out.

What is the area of the given figure? (All dimensions are in cm)

A ball is rolled on the sand, on road and on an ice surface. In which of the case will it move the farthest?

The frequency of a vibrating body is 25 Hz. Calculate its time period (in sec).0.04

What is the major function of aqueous humour?

What are the 2 important qunatities that describes sound

Convert 10 N into C.G.S unit (dyne).

When a glass rod is rubbed with a piece of silk cloth the rod

If a metallic wire of resistance R is melted and recast to half of its length, the new resistance of the wire will be?

Which of the following is the most important characteristic that needs to be looked at before choosing an electrolyte?

Why friction even exists between two smooth surfaces? Why force of friction is greater if a rough surface is involved? [3 MARKS]

What is a prism ? Draw a ray diagram to show the refraction of a light ray through a prism.

How is an atom electrically stable?

Does light need any medium to travel? If yes what's that? If No then what is the mechanism of traveling of light?

Sound is a:

How does a big balloon with a basket full of people manage to float in the air

Question 11 Your parents are going to buy a house. They have been offered one on the roadside and another three lanes away from the roadside. Which house would you suggest your parents should buy? Explain.

Fill in the blanks with an appropriate adverb. Stentor screamed ________ than anyone in the Greek army.

Do sound can change its medium like light?

Find the eqivalent temperature of 20∘C in degree Fahrenheit.

A child drops a toy from the top of a building, it takes 1 s to reach the ground. Find the height of the building and the average speed of the toy respectively. (Take g = 10 ms−2)

Define 'state of motion' of an object. Name the 'agent' which can change the state of motion of an object.

How do airbags reduce damage to passengers during an accident?

There is a square plot with side length equal to 13 m. A farmer wanted to grow grass on half his field and plough the remaining land to a depth of 40 cm. Find the volume of land ploughed?

Suppose your writing table (or desk) is titled a little. A book kept on the table starts sliding down. Draw a diagram to show the direction of force of friction acting on the book.

(a) How can you show that a sounding tabla is vibrating? (b) On what factor does the loudness of a sound depend?

One morning after sunrise, Vijay and Sakshi were standing in a town with their backs towards each other. Vijay’s shadow fell exactly towards his left hand side. Which direction was Sakshi facing?