6277 + Interview Questions in Physics Page 116 InterviewSolution

5751.	For the following devices: I: Fuse II: Electric Bulb III: Electric Bell Select the correct option.
Answer» For the following devices: I: Fuse II: Electric Bulb III: Electric Bell Select the correct option.

5751.

For the following devices: I: Fuse II: Electric Bulb III: Electric Bell Select the correct option.

Answer»

For the following devices:

I: Fuse

II: Electric Bulb

III: Electric Bell

Select the correct option.

Discussion

5752.	In jewellery shop, electroplating is done to deposit gold on steel. Now the jewellery appears as gold. Is this a chemical change or a physical change? Give reason. [2 MARKS]
Answer» In jewellery shop, electroplating is done to deposit gold on steel. Now the jewellery appears as gold. Is this a chemical change or a physical change? Give reason. [2 MARKS]

Discussion

5753.	A motorist traveled 190 km in 5 hours. His average speed for first 100 kilometres was 50 km/h. What was his average speed for the second 90 kilometres?
Answer» A motorist traveled 190 km in 5 hours. His average speed for first 100 kilometres was 50 km/h. What was his average speed for the second 90 kilometres?

Discussion

5754.	Name the element used as filament in electric bulb?
Answer» Name the element used as filament in electric bulb?

Discussion

5755.	What are the parameters to change size of the shadow?
Answer» What are the parameters to change size of the shadow?

Discussion

5756.	Why cannot we see upside down image of the sun through the pinhole camera?
Answer» Why cannot we see upside down image of the sun through the pinhole camera?

Discussion

5757.	The temperature of a body falls from 40∘C to 36∘C in 5 minutes when placed in a surrounding of constant temperature 16∘C . Find the time taken for the temperature of the body to become 32∘C.
Answer» The temperature of a body falls from $40^{\circ} C$ to $36^{\circ} C$ in 5 minutes when placed in a surrounding of constant temperature $16^{\circ} C$ . Find the time taken for the temperature of the body to become $32^{\circ} C$ .

Discussion

5758.	What is low melting point ?
Answer» What is low melting point ?

Discussion

5759.	Which of the following is the best reason why a metal ruler feels colder than a wooden ruler?
Answer» Which of the following is the best reason why a metal ruler feels colder than a wooden ruler?

Discussion

5760.	Area of a circle whose radius is 5 cm is
Answer» Area of a circle whose radius is 5 cm is

Discussion

5761.	A body is said to be in motion__.
Answer» A body is said to be in motion__.

Discussion

5762.	Question 11 Lightning can be seen the moment it occurs. Paheli observes lightning in her area. She hears the sound 5 s after she observed lightning. How far is she from the place where lightning occurs? (speed of sound = 330 m/s).
Answer» Question 11 Lightning can be seen the moment it occurs. Paheli observes lightning in her area. She hears the sound 5 s after she observed lightning. How far is she from the place where lightning occurs? (speed of sound = 330 m/s).

Discussion

5763.	How many earth days does sun take to pass 12 zodiacs and 27 asterisms?
Answer» How many earth days does sun take to pass 12 zodiacs and 27 asterisms?

Discussion

5764.	In which of the following applications is electricity used?
Answer» In which of the following applications is electricity used?

Discussion

5765.	Given below are four objects: (i) The base of a frying pan taken from the flame (ii) Ice cream (iii) Snow (iv) Molten wax Which of the following object(s) given above is/are hot?
Answer» Given below are four objects: (i) The base of a frying pan taken from the flame (ii) Ice cream (iii) Snow (iv) Molten wax Which of the following object(s) given above is/are hot?

5765.

Given below are four objects: (i) The base of a frying pan taken from the flame (ii) Ice cream (iii) Snow (iv) Molten wax Which of the following object(s) given above is/are hot?

Answer»

Given below are four objects:

(i) The base of a frying pan taken from the flame

(ii) Ice cream

(iii) Snow

(iv) Molten wax

Which of the following object(s) given above is/are hot?

Discussion

5766.	Himanshu has three buckets as shown below. He kept his right-hand in bucket A and left-hand in bucket B. Then, he kept both of his hands in normal water. His right-hand feels that the water is hotter while his left-hand feels that the water is colder. Select the correct option:
Answer» Himanshu has three buckets as shown below. He kept his right-hand in bucket A and left-hand in bucket B. Then, he kept both of his hands in normal water. His right-hand feels that the water is hotter while his left-hand feels that the water is colder. Select the correct option:

5766.

Himanshu has three buckets as shown below. He kept his right-hand in bucket A and left-hand in bucket B. Then, he kept both of his hands in normal water. His right-hand feels that the water is hotter while his left-hand feels that the water is colder. Select the correct option:

Answer»

Himanshu has three buckets as shown below. He kept his right-hand in bucket A and left-hand in bucket B. Then, he kept both of his hands in normal water. His right-hand feels that the water is hotter while his left-hand feels that the water is colder.

Select the correct option:

Discussion

5767.

which is the odd one out of these;. Odometer, speedometer, clock what is the Reason:

Answer»

which is the odd one out of these;.

Odometer, speedometer, clock

what is the

Reason:

Discussion

5768.	What is a difference between a solenoid and an electromagnet?
Answer» What is a difference between a solenoid and an electromagnet?

Discussion

5769.	Why does a magnet gets demagnetised whenwits hit to anything or heated or if kept undisturbed for a long time?
Answer» Why does a magnet gets demagnetised whenwits hit to anything or heated or if kept undisturbed for a long time?

Discussion

5770.	If two plane mirrors are perpendicular to each other and 1 = 40°, then find the value of 2. A) 40° B) 50° C) 30° D) 90°
Answer» If two plane mirrors are perpendicular to each other and 1 = 40°, then find the value of 2. A) 40° B) 50° C) 30° D) 90°

Discussion

5771.	What is equilibrium
Answer» What is equilibrium

Discussion

5772.	What will a paper appearing black in sunlight appear in red light?
Answer» What will a paper appearing black in sunlight appear in red light?

Discussion

5773.	Which of the following factors does not influence the amount of work done?
Answer» Which of the following factors does not influence the amount of work done?

Discussion

5774.	Select the correct statement among the following with respect to sand and sea?
Answer» Select the correct statement among the following with respect to sand and sea?

Discussion

5775.	If the speed of a body is 5m s−1, then the time it would take to cover a distance of 6 km is:
Answer» If the speed of a body is $5 m s^{- 1}$ , then the time it would take to cover a distance of 6 km is:

Discussion

5776.	Bulb of the lab thermometer should not touch the surface of the___________
Answer» Bulb of the lab thermometer should not touch the surface of the___________

Discussion

5777.	Rays parallel to the principal axis of a concave or a convex mirror meet or appear to come from which point respectively?
Answer» Rays parallel to the principal axis of a concave or a convex mirror meet or appear to come from which point respectively?

Discussion

5778.	Suppose there is a hot plate (tawa) on a stove, and a cube of ice id placed on it. What do you think will happen? If another ice cube is kept very close to the hot plate, but not in contact with it, what fo you think will differ from the earlier situation? What would remain the same?
Answer» Suppose there is a hot plate (tawa) on a stove, and a cube of ice id placed on it. What do you think will happen? If another ice cube is kept very close to the hot plate, but not in contact with it, what fo you think will differ from the earlier situation? What would remain the same?

Discussion

5779.	How many furlongs are there in a mile?
Answer» How many furlongs are there in a mile?

Discussion

5780.	(a) Draw the symbols to represent the following components of electrical circuits: cell, bulb, switch in the ‘ON’ position, switch in the ‘OFF’ position and battery. (b) An electrician is doing some repairs in your house. He wants to replace a fuse by a piece of wire. Would you agree? Give reasons for your response. [5 MARKS]
Answer» (a) Draw the symbols to represent the following components of electrical circuits: cell, bulb, switch in the ‘ON’ position, switch in the ‘OFF’ position and battery. (b) An electrician is doing some repairs in your house. He wants to replace a fuse by a piece of wire. Would you agree? Give reasons for your response. [5 MARKS]

Discussion

5781.	What kind of reflection produces illumination? if the angle of incidence is x ,the incident ray strikes the surface normally.what is x?
Answer» What kind of reflection produces illumination? if the angle of incidence is x ,the incident ray strikes the surface normally.what is x?

Discussion

5782.	Anytime a temperature difference occurs, you can expect
Answer» Anytime a temperature difference occurs, you can expect

Discussion

5783.	What effect can be created by the high-speed winds?
Answer» What effect can be created by the high-speed winds?

Discussion

5784.	Which one among the following factors does not have much impact on the amount of heat generated in a current carrying conductor?
Answer» Which one among the following factors does not have much impact on the amount of heat generated in a current carrying conductor?

Discussion

5785.	What is a battery? How is it made? Where is it used? [3 MARKS]
Answer» What is a battery? How is it made? Where is it used? [3 MARKS]

Discussion

5786.	Which of the statements given below is correct?
Answer» Which of the statements given below is correct?

Discussion

5787.	Why tube light gives our more light when both of them uses equal amount of heat?Say 40 waats
Answer» Why tube light gives our more light when both of them uses equal amount of heat?Say 40 waats

Discussion

5788.	In the above three figures, the arrows indicate the direction of force and magnitude of force is mentioned near the arrows. Which box is experiencing balanced force?
Answer» In the above three figures, the arrows indicate the direction of force and magnitude of force is mentioned near the arrows. Which box is experiencing balanced force?

5788.

In the above three figures, the arrows indicate the direction of force and magnitude of force is mentioned near the arrows. Which box is experiencing balanced force?

Answer»

In the above three figures, the arrows indicate the direction of force and magnitude of force is mentioned near the arrows.

Which box is experiencing balanced force?

Discussion

5789.	What laboratory thermometers does'nt has a kink.?
Answer» What laboratory thermometers does'nt has a kink.?

Discussion

5790.	How does electric current pass to other bulb if one bulb resists and converts in heat or light energy??
Answer» How does electric current pass to other bulb if one bulb resists and converts in heat or light energy??

Discussion

5791.	In the below figure, the angle of reflection is
Answer» In the below figure, the angle of reflection is

5791.

In the below figure, the angle of reflection is

Answer»

In the below figure, the angle of reflection is

Discussion

5792.	A permanent magnet can be demagnetised using current. This is done by
Answer» A permanent magnet can be demagnetised using current. This is done by

Discussion

5793.	What are the factors of conducting wire on which amount of heat produced depends?
Answer» What are the factors of conducting wire on which amount of heat produced depends?

Discussion

5794.	When an apple falls freely from the tree towards the ground, then its total mechanical energy _________.
Answer» When an apple falls freely from the tree towards the ground, then its total mechanical energy _________.

Discussion

5795.	Two bodies A and B are brought into contact with one another and heat flows from A to B. Which of the following statements is true?
Answer» Two bodies A and B are brought into contact with one another and heat flows from A to B. Which of the following statements is true?

Discussion

5796.	The melting point of ice is :
Answer» The melting point of ice is :

Discussion

5797.	According to the passage, early Chinese maps placed north at the top because
Answer» According to the passage, early Chinese maps placed north at the top because

Discussion

5798.	The principle of Ocean thermal energy conversion is
Answer» The principle of Ocean thermal energy conversion is

Discussion

5799.	The figure shows four cells fixed on a board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells. [1 MARK]
Answer» The figure shows four cells fixed on a board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells. [1 MARK]

Discussion

5800.	A 10 N force is applied on a cube of side 2 m. Calculate the thrust (T) and pressure (P) acting on the cube .
Answer» A $10 N$ force is applied on a cube of side $2 m$ . Calculate the thrust $(T)$ and pressure $(P)$ acting on the cube .

Discussion

Explore topic-wise InterviewSolutions in .

For the following devices: I: Fuse II: Electric Bulb III: Electric Bell Select the correct option.

In jewellery shop, electroplating is done to deposit gold on steel. Now the jewellery appears as gold. Is this a chemical change or a physical change? Give reason. [2 MARKS]

A motorist traveled 190 km in 5 hours. His average speed for first 100 kilometres was 50 km/h. What was his average speed for the second 90 kilometres?

Name the element used as filament in electric bulb?

What are the parameters to change size of the shadow?

Why cannot we see upside down image of the sun through the pinhole camera?

The temperature of a body falls from 40∘C to 36∘C in 5 minutes when placed in a surrounding of constant temperature 16∘C . Find the time taken for the temperature of the body to become 32∘C.

What is low melting point ?

Which of the following is the best reason why a metal ruler feels colder than a wooden ruler?

Area of a circle whose radius is 5 cm is

A body is said to be in motion__.

Question 11 Lightning can be seen the moment it occurs. Paheli observes lightning in her area. She hears the sound 5 s after she observed lightning. How far is she from the place where lightning occurs? (speed of sound = 330 m/s).

How many earth days does sun take to pass 12 zodiacs and 27 asterisms?

In which of the following applications is electricity used?

Given below are four objects: (i) The base of a frying pan taken from the flame (ii) Ice cream (iii) Snow (iv) Molten wax Which of the following object(s) given above is/are hot?

Himanshu has three buckets as shown below. He kept his right-hand in bucket A and left-hand in bucket B. Then, he kept both of his hands in normal water. His right-hand feels that the water is hotter while his left-hand feels that the water is colder. Select the correct option:

which is the odd one out of these;. Odometer, speedometer, clock what is the Reason:

What is a difference between a solenoid and an electromagnet?

Why does a magnet gets demagnetised whenwits hit to anything or heated or if kept undisturbed for a long time?

If two plane mirrors are perpendicular to each other and 1 = 40°, then find the value of 2. A) 40° B) 50° C) 30° D) 90°

What is equilibrium

What will a paper appearing black in sunlight appear in red light?

Which of the following factors does not influence the amount of work done?

Select the correct statement among the following with respect to sand and sea?

If the speed of a body is 5m s−1, then the time it would take to cover a distance of 6 km is:

Bulb of the lab thermometer should not touch the surface of the___________

Rays parallel to the principal axis of a concave or a convex mirror meet or appear to come from which point respectively?

Suppose there is a hot plate (tawa) on a stove, and a cube of ice id placed on it. What do you think will happen? If another ice cube is kept very close to the hot plate, but not in contact with it, what fo you think will differ from the earlier situation? What would remain the same?

How many furlongs are there in a mile?

What kind of reflection produces illumination? if the angle of incidence is x ,the incident ray strikes the surface normally.what is x?

Anytime a temperature difference occurs, you can expect

What effect can be created by the high-speed winds?

Which one among the following factors does not have much impact on the amount of heat generated in a current carrying conductor?

What is a battery? How is it made? Where is it used? [3 MARKS]

Which of the statements given below is correct?

Why tube light gives our more light when both of them uses equal amount of heat?Say 40 waats

In the above three figures, the arrows indicate the direction of force and magnitude of force is mentioned near the arrows. Which box is experiencing balanced force?

What laboratory thermometers does'nt has a kink.?

How does electric current pass to other bulb if one bulb resists and converts in heat or light energy??

In the below figure, the angle of reflection is

A permanent magnet can be demagnetised using current. This is done by

What are the factors of conducting wire on which amount of heat produced depends?

When an apple falls freely from the tree towards the ground, then its total mechanical energy _________.

Two bodies A and B are brought into contact with one another and heat flows from A to B. Which of the following statements is true?

The melting point of ice is :

According to the passage, early Chinese maps placed north at the top because

The principle of Ocean thermal energy conversion is

The figure shows four cells fixed on a board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells. [1 MARK]

A 10 N force is applied on a cube of side 2 m. Calculate the thrust (T) and pressure (P) acting on the cube .