3752 + Interview Questions in Physics Page 30 InterviewSolution

1451.	What happens to magnetic dipole moment and magnetic pole strength when bar magnet is cut diagonally ?
Answer» What happens to magnetic dipole moment and magnetic pole strength when bar magnet is cut diagonally ?

Discussion

1452.	Which of the following objects is opaque?
Answer» Which of the following objects is opaque?

Discussion

1453.	Access to affordable, reliable, sustainable and modern energy is the sine qua non to achieve Sustainable Development Goals (SDGs). Comment on the progress made in India in this regard.
Answer» Access to affordable, reliable, sustainable and modern energy is the sine qua non to achieve Sustainable Development Goals (SDGs). Comment on the progress made in India in this regard.

Discussion

1454.	A task was assigned to Virat to measure a snake-like steel rod which looks something like this. Which of the following objects/methods should he use to make this measurement?
Answer» A task was assigned to Virat to measure a snake-like steel rod which looks something like this. Which of the following objects/methods should he use to make this measurement?

1454.

A task was assigned to Virat to measure a snake-like steel rod which looks something like this. Which of the following objects/methods should he use to make this measurement?

Answer»

A task was assigned to Virat to measure a snake-like steel rod which looks something like this.

Which of the following objects/methods should he use to make this measurement?

Discussion

1455.	5. Assume that 2 x 10-17J of light energy is needed by the interior of the human eye to see an object.How many photons of yellow light with 595.2 nm are needed to generate minimum energy ?(1) 6(2) 30(3) 45(4) 60
Answer» 5. Assume that 2 x 10-17J of light energy is needed by the interior of the human eye to see an object.How many photons of yellow light with 595.2 nm are needed to generate minimum energy ?(1) 6(2) 30(3) 45(4) 60

Discussion

1456.	If a ship travels from one port to another with the average speed of 36 km h−1, find its speed in m s−1.
Answer» If a ship travels from one port to another with the average speed of $36 k m h^{- 1}$ , find its speed in $m s^{- 1}$ .

Discussion

1457.	126.Distance travelled by a stone falling freely from rest in the last second of its motion is equal to the distance travelled in first 3 seconds of its motion. Find the total time of journey.
Answer» 126.Distance travelled by a stone falling freely from rest in the last second of its motion is equal to the distance travelled in first 3 seconds of its motion. Find the total time of journey.

Discussion

1458.	explain the steps involved in the extraction of steel
Answer» explain the steps involved in the extraction of steel

Discussion

1459.	Which of the following revolves around a planet?
Answer» Which of the following revolves around a planet?

Discussion

1460.	Which place will be a pollution free area?
Answer» Which place will be a pollution free area?

Discussion

1461.	58. If a body travels half of its total path in last second of its fall from rest then the total total time time of its fall will be
Answer» 58. If a body travels half of its total path in last second of its fall from rest then the total total time time of its fall will be

Discussion

1462.	You spilla bucket of soapy water on a marble floor accidentally. Would it makeit easier or more difficult for you to walk on the floor? Why?
Answer» You spill a bucket of soapy water on a marble floor accidentally. Would it make it easier or more difficult for you to walk on the floor? Why?

Discussion

1463.	Classify the following into magnetic and non-magnetic materials. Give reasons. [3 MARKS] Rubber, wood, steel, iron nails, cobalt, plastic
Answer» Classify the following into magnetic and non-magnetic materials. Give reasons. [3 MARKS] Rubber, wood, steel, iron nails, cobalt, plastic

Discussion

1464.	The work done by a force depends on
Answer» The work done by a force depends on

Discussion

1465.	भाव स्पष्ट कीजिए - (क) कोटिक ए कलधौत के धाम करील के कुंजन ऊपर वारौं। (ख) माइ री वा मुख की मुसकानि सम्हारी न जैहै, न जैहै, न जैहै।
Answer» भाव स्पष्ट कीजिए - (क) कोटिक ए कलधौत के धाम करील के कुंजन ऊपर वारौं। (ख) माइ री वा मुख की मुसकानि सम्हारी न जैहै, न जैहै, न जैहै।

1465.

भाव स्पष्ट कीजिए - (क) कोटिक ए कलधौत के धाम करील के कुंजन ऊपर वारौं। (ख) माइ री वा मुख की मुसकानि सम्हारी न जैहै, न जैहै, न जैहै।

Answer»

भाव स्पष्ट कीजिए -

(क) कोटिक ए कलधौत के धाम करील के कुंजन ऊपर वारौं।

(ख) माइ री वा मुख की मुसकानि सम्हारी न जैहै, न जैहै, न जैहै।

Discussion

1466.	107.In the network shown, find the resistance across AB 1)R 2)2R 3)R/2 4)4R
Answer» 107.In the network shown, find the resistance across AB 1)R 2)2R 3)R/2 4)4R

Discussion

1467.	The source of light which is of the size of pinhead of a common pin is known as the
Answer» The source of light which is of the size of pinhead of a common pin is known as the

Discussion

1468.	Question 6The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?
Answer» Question 6 The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?

Discussion

1469.	An electric cell has _____ terminals
Answer» An electric cell has _____ terminals

Discussion

1470.	What type of energy is stored in the spring of a watch?
Answer» What type of energy is stored in the spring of a watch?

Discussion

1471.	A machine has a mechanical advantage of 10. It used to lift a load of 200 kgf. Find the required effort.
Answer» A machine has a mechanical advantage of $10$ . It used to lift a load of $200 k g f$ . Find the required effort.

Discussion

1472.	A cylindrical wire is compressing length by 10%.The percentage decrease in the resistance will be a) 16% b) 19% c) 20% d) 25%
Answer» A cylindrical wire is compressing length by 10%.The percentage decrease in the resistance will be a) 16% b) 19% c) 20% d) 25%

Discussion

1473.	A ladder 10cm long rest against a wall if it's foot and ladder is 6cm away from the wall and ladder just reaches the top of the wall how high is the wall ??
Answer» A ladder 10cm long rest against a wall if it's foot and ladder is 6cm away from the wall and ladder just reaches the top of the wall how high is the wall ??

Discussion

1474.	Question 5Two objects repel each other. This repulsion could be due to(a) frictional force only(b) electrostatic force only(c) magnetic force only(d) either a magnetic or an electrostatic force
Answer» Question 5 Two objects repel each other. This repulsion could be due to (a) frictional force only (b) electrostatic force only (c) magnetic force only (d) either a magnetic or an electrostatic force

Discussion

1475.	what happends if a freely suspended bar magnet is disturbed aligned along the east -west direction
Answer» what happends if a freely suspended bar magnet is disturbed aligned along the east -west direction

Discussion

1476.	Write two methods by which a magnet can be demagnetised.
Answer» Write two methods by which a magnet can be demagnetised.

Discussion

1477.	A compound beam is composed of a beam AB (simply supported A) and a cantilever beam BC( fixed at c) . The two beams are linked together by a pin connection at B as shown in figure.Deflection at B=wb4MEI+Pb3NEIThe value of (M+N)=________12.5
Answer» A compound beam is composed of a beam AB (simply supported A) and a cantilever beam BC( fixed at c) . The two beams are linked together by a pin connection at B as shown in figure. Deflection at B $= \frac{w b^{4}}{M E I} + \frac{P b^{3}}{N E I}$ The value of (M+N)=________ 12.5

Discussion

1478.	50.Why pulling is preferred over pushing
Answer» 50.Why pulling is preferred over pushing

Discussion

1479.	Even when more than one force is applied to an object, it remains unaffected. When does this happen and why?
Answer» Even when more than one force is applied to an object, it remains unaffected. When does this happen and why?

Discussion

1480.	A reliable measure of the degree of hotness or coldness of a body is
Answer» A reliable measure of the degree of hotness or coldness of a body is

Discussion

1481.	Two point charges in a dielectric where εr=4.2 interact with a force of 16.8×10−3N 70.56
Answer» Two point charges in a dielectric where $ε_{r} = 4.2$ interact with a force of $16.8 \times 10^{- 3} N$ 70.56

Discussion

1482.	Which one of the following is the most suitable for measuring the length of a curved line?
Answer» Which one of the following is the most suitable for measuring the length of a curved line?

Discussion

1483.	Explain : Oscillatory motion, periodic motion, random motion, circular motion.
Answer» Explain : Oscillatory motion, periodic motion, random motion, circular motion.

1483.

Explain : Oscillatory motion, periodic motion, random motion, circular motion.

Answer»

Explain :

Oscillatory motion, periodic motion, random motion, circular motion.

Discussion

1484.	speed of an object moving in circular path of radius10m with angular speed 2rad/s is
Answer» speed of an object moving in circular path of radius10m with angular speed 2rad/s is

Discussion

1485.	Why is the distance between stars expressed in light years ? What do you understand by the statement that a star is eight light years away from the earth
Answer» Why is the distance between stars expressed in light years ? What do you understand by the statement that a star is eight light years away from the earth

Discussion

1486.	Which planet have largest planet and what is moon's name?
Answer» Which planet have largest planet and what is moon's name?

Discussion

1487.	Diagram of circuit closed and open
Answer» Diagram of circuit closed and open

Discussion

1488.	Which of the following is a conventional energy resource?
Answer» Which of the following is a conventional energy resource?

Discussion

1489.	In _______ motion(s), the object returns to its starting point after moving for some fixed amount of distance.
Answer» In _______ motion(s), the object returns to its starting point after moving for some fixed amount of distance.

Discussion

1490.	As a safety measure, you are advised to wear rubber slippers or shoes when handling electrical appliances. Why?
Answer» As a safety measure, you are advised to wear rubber slippers or shoes when handling electrical appliances. Why?

Discussion

1491.	14.Weight of the man is 60kgf.Neglecting the weight of plank and pulley,what force he should apply to hold the plank in position?
Answer» 14.Weight of the man is 60kgf.Neglecting the weight of plank and pulley,what force he should apply to hold the plank in position?

Discussion

1492.	Name the device used in car to measure:a). how fast you are travelling.b). distance travelled.
Answer» Name the device used in car to measure: a). how fast you are travelling. b). distance travelled.

Discussion

1493.	I am going to have a science exibition in my school. But I have no idea what I'm going to make. Can you suggest an cool experiment on any of these topics: * Magnets * Electricity *Light please answer as soon as possible Regards, Uditi
Answer» I am going to have a science exibition in my school. But I have no idea what I'm going to make. Can you suggest an cool experiment on any of these topics: * Magnets * Electricity *Light please answer as soon as possible Regards, Uditi

Discussion

1494.	Why is distance measured in kilometers rather than in miles?
Answer» Why is distance measured in kilometers rather than in miles?

Discussion

1495.	What is friction? What is the direction of friction if mickey mouse is sliding on towards the right? [3 MARKS]
Answer» What is friction? What is the direction of friction if mickey mouse is sliding on towards the right? [3 MARKS]

1495.

What is friction? What is the direction of friction if mickey mouse is sliding on towards the right? [3 MARKS]

Answer»

What is friction? What is the direction of friction if mickey mouse is sliding on towards the right? [3 MARKS]

Discussion

1496.	2. Three balls A, B and C are kept in a straight line. Theseparation between A and C is 1 m, and B is placedat the midpoint between them. The masses of A, B,Care 100 g, 200 g and 300 g respectively. Find the netgravitational force on (a) A, (b) B, and (c) C
Answer» 2. Three balls A, B and C are kept in a straight line. Theseparation between A and C is 1 m, and B is placedat the midpoint between them. The masses of A, B,Care 100 g, 200 g and 300 g respectively. Find the netgravitational force on (a) A, (b) B, and (c) C

Discussion

1497.	An object is observed from two points A and B. The object changes its position continuously with respect to A. However, the position of the object is constant with respect to B. Which of the following is/are true?
Answer» An object is observed from two points A and B. The object changes its position continuously with respect to A. However, the position of the object is constant with respect to B. Which of the following is/are true?

Discussion

1498.	Question 1Distinguish between speed and velocity.
Answer» Question 1 Distinguish between speed and velocity.

Discussion

1499.	47.Hail storms are observed to strike the surface of the frozen lake at 300 with the vertical and rebound at 600 with the vertical assume contact to be smooth the coefficient of restitution is.
Answer» 47.Hail storms are observed to strike the surface of the frozen lake at 300 with the vertical and rebound at 600 with the vertical assume contact to be smooth the coefficient of restitution is.

Discussion

1500.	Choose the correct option: Statement 1: When a plastic straw is rubbed with a piece of paper and brought near another plastic straw, it attracts the second straw. Statement 2: A straw is said to have acquired electrostatic charge after it has been rubbed with a piece of paper. Therefore, it exerts an electrostatic force on the second straw and attracts it.
Answer» Choose the correct option: Statement 1: When a plastic straw is rubbed with a piece of paper and brought near another plastic straw, it attracts the second straw. Statement 2: A straw is said to have acquired electrostatic charge after it has been rubbed with a piece of paper. Therefore, it exerts an electrostatic force on the second straw and attracts it.

1500.

Choose the correct option: Statement 1: When a plastic straw is rubbed with a piece of paper and brought near another plastic straw, it attracts the second straw. Statement 2: A straw is said to have acquired electrostatic charge after it has been rubbed with a piece of paper. Therefore, it exerts an electrostatic force on the second straw and attracts it.

Answer»

Choose the correct option:

Statement 1: When a plastic straw is rubbed with a piece of paper and brought near another plastic straw, it attracts the second straw.

Statement 2: A straw is said to have acquired electrostatic charge after it has been rubbed with a piece of paper. Therefore, it exerts an electrostatic force on the second straw and attracts it.

Discussion

Explore topic-wise InterviewSolutions in .

What happens to magnetic dipole moment and magnetic pole strength when bar magnet is cut diagonally ?

Which of the following objects is opaque?

Access to affordable, reliable, sustainable and modern energy is the sine qua non to achieve Sustainable Development Goals (SDGs). Comment on the progress made in India in this regard.

A task was assigned to Virat to measure a snake-like steel rod which looks something like this. Which of the following objects/methods should he use to make this measurement?

5. Assume that 2 x 10-17J of light energy is needed by the interior of the human eye to see an object.How many photons of yellow light with 595.2 nm are needed to generate minimum energy ?(1) 6(2) 30(3) 45(4) 60

If a ship travels from one port to another with the average speed of 36 km h−1, find its speed in m s−1.

126.Distance travelled by a stone falling freely from rest in the last second of its motion is equal to the distance travelled in first 3 seconds of its motion. Find the total time of journey.

explain the steps involved in the extraction of steel

Which of the following revolves around a planet?

Which place will be a pollution free area?

58. If a body travels half of its total path in last second of its fall from rest then the total total time time of its fall will be

You spilla bucket of soapy water on a marble floor accidentally. Would it makeit easier or more difficult for you to walk on the floor? Why?

Classify the following into magnetic and non-magnetic materials. Give reasons. [3 MARKS] Rubber, wood, steel, iron nails, cobalt, plastic

The work done by a force depends on

107.In the network shown, find the resistance across AB 1)R 2)2R 3)R/2 4)4R

The source of light which is of the size of pinhead of a common pin is known as the

Question 6The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?

An electric cell has _____ terminals

What type of energy is stored in the spring of a watch?

A machine has a mechanical advantage of 10. It used to lift a load of 200 kgf. Find the required effort.

A cylindrical wire is compressing length by 10%.The percentage decrease in the resistance will be a) 16% b) 19% c) 20% d) 25%

A ladder 10cm long rest against a wall if it's foot and ladder is 6cm away from the wall and ladder just reaches the top of the wall how high is the wall ??

Question 5Two objects repel each other. This repulsion could be due to(a) frictional force only(b) electrostatic force only(c) magnetic force only(d) either a magnetic or an electrostatic force

what happends if a freely suspended bar magnet is disturbed aligned along the east -west direction

Write two methods by which a magnet can be demagnetised.

A compound beam is composed of a beam AB (simply supported A) and a cantilever beam BC( fixed at c) . The two beams are linked together by a pin connection at B as shown in figure.Deflection at B=wb4MEI+Pb3NEIThe value of (M+N)=________12.5

50.Why pulling is preferred over pushing

Even when more than one force is applied to an object, it remains unaffected. When does this happen and why?

A reliable measure of the degree of hotness or coldness of a body is

Two point charges in a dielectric where εr=4.2 interact with a force of 16.8×10−3N 70.56

Which one of the following is the most suitable for measuring the length of a curved line?

Explain : Oscillatory motion, periodic motion, random motion, circular motion.

speed of an object moving in circular path of radius10m with angular speed 2rad/s is

Why is the distance between stars expressed in light years ? What do you understand by the statement that a star is eight light years away from the earth

Which planet have largest planet and what is moon's name?

Diagram of circuit closed and open

Which of the following is a conventional energy resource?

In _______ motion(s), the object returns to its starting point after moving for some fixed amount of distance.

As a safety measure, you are advised to wear rubber slippers or shoes when handling electrical appliances. Why?

14.Weight of the man is 60kgf.Neglecting the weight of plank and pulley,what force he should apply to hold the plank in position?

Name the device used in car to measure:a). how fast you are travelling.b). distance travelled.

I am going to have a science exibition in my school. But I have no idea what I'm going to make. Can you suggest an cool experiment on any of these topics: * Magnets * Electricity *Light please answer as soon as possible Regards, Uditi

Why is distance measured in kilometers rather than in miles?

What is friction? What is the direction of friction if mickey mouse is sliding on towards the right? [3 MARKS]

2. Three balls A, B and C are kept in a straight line. Theseparation between A and C is 1 m, and B is placedat the midpoint between them. The masses of A, B,Care 100 g, 200 g and 300 g respectively. Find the netgravitational force on (a) A, (b) B, and (c) C

An object is observed from two points A and B. The object changes its position continuously with respect to A. However, the position of the object is constant with respect to B. Which of the following is/are true?

Question 1Distinguish between speed and velocity.

47.Hail storms are observed to strike the surface of the frozen lake at 300 with the vertical and rebound at 600 with the vertical assume contact to be smooth the coefficient of restitution is.