3752 + Interview Questions in Physics Page 31 InterviewSolution

1501.	What does the underlined preposition indicate? Mr. Mallik scooped his food with a spoon.
Answer» What does the underlined preposition indicate? Mr. Mallik scooped his food with a spoon.

1501.

What does the underlined preposition indicate? Mr. Mallik scooped his food with a spoon.

Answer»

What does the underlined preposition indicate?

Mr. Mallik scooped his food with a spoon.

1502.	Should we consider air friction while drawing free body diagram?
Answer» Should we consider air friction while drawing free body diagram?

Discussion

1503.	Question 3 (c) Fill in the blanks in the following statements: (c) To move a loaded trolley we have to ___ it.
Answer» Question 3 (c) Fill in the blanks in the following statements: (c) To move a loaded trolley we have to ___ it.

Discussion

1504.	Reflection of light takes place when light falls on:
Answer» Reflection of light takes place when light falls on:

Discussion

1505.	150 J work is done when a 15 N force is applied to an object. The object covers a displacement equal to ____ m.10
Answer» 150 J work is done when a 15 N force is applied to an object. The object covers a displacement equal to ____ m. 10

Discussion

1506.	Class III levers have mechanical advantage less than one. Why are they then used?
Answer» Class III levers have mechanical advantage less than one. Why are they then used?

Discussion

1507.	Question 3 (b)Give reasons(b) A gas exerts pressure on the walls of the container.
Answer» Question 3 (b) Give reasons (b) A gas exerts pressure on the walls of the container.

Discussion

1508.	Which of the following statements is incorrect?
Answer» Which of the following statements is incorrect?

Discussion

1509.	If a magnet is placed on a frictionless plate with pins spread on it, then________.
Answer» If a magnet is placed on a frictionless plate with pins spread on it, then________.

Discussion

1510.	Concrete is an example of ____ object.
Answer» Concrete is an example of ____ object.

Discussion

1511.	light year is the unit of
Answer» light year is the unit of

Discussion

1512.	difference between convergent and divergent rays.
Answer» difference between convergent and divergent rays.

Discussion

1513.	Question 4A batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows to a stop because(a) the batsman did not hit the ball hard enough.(b) velocity is proportional to the force exerted on the ball.(c) there is a force on the ball opposing the motion.(d) there is no unbalanced force on the ball, so the ball would want to come to rest.
Answer» Question 4 A batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows to a stop because (a) the batsman did not hit the ball hard enough. (b) velocity is proportional to the force exerted on the ball. (c) there is a force on the ball opposing the motion. (d) there is no unbalanced force on the ball, so the ball would want to come to rest.

Discussion

1514.	The possibility of Earth coming in between the sun and the moon is once a month. Why don't we experience an eclipse every month?
Answer» The possibility of Earth coming in between the sun and the moon is once a month. Why don't we experience an eclipse every month?

Discussion

1515.	Is weight a vector ?
Answer» Is weight a vector ?

Discussion

1516.	what is refractive inde
Answer» what is refractive inde

Discussion

1517.	Choose the option which labels the diagram correctly.
Answer» Choose the option which labels the diagram correctly.

1517.

Choose the option which labels the diagram correctly.

Answer»

Choose the option which labels the diagram correctly.

Discussion

1518.	Loud noise can break glass panes. Which of the following conclusions can be drawn from this? I. Sound is a form of energy. II. Sound can’t travel through vacuum. III. Sound can be used to do work.
Answer» Loud noise can break glass panes. Which of the following conclusions can be drawn from this? I. Sound is a form of energy. II. Sound can’t travel through vacuum. III. Sound can be used to do work.

1518.

Loud noise can break glass panes. Which of the following conclusions can be drawn from this? I. Sound is a form of energy. II. Sound can’t travel through vacuum. III. Sound can be used to do work.

Answer»

Loud noise can break glass panes. Which of the following conclusions can be drawn from this?

I. Sound is a form of energy.

II. Sound can’t travel through vacuum.

III. Sound can be used to do work.

Discussion

1519.	If the efficiency of a machine is 10 % and the work done on a machine is 2000 J, then what is the work done by the machine?
Answer» If the efficiency of a machine is $10 %$ and the work done on a machine is $2000 J$ , then what is the work done by the machine?

Discussion

1520.	Question 4 Column I shows different positions in which one pole of a magnet is placed near that of the other. Column II indicates the resulting action between them for each situation. Fill in the blanks. Column IColumn IIN−N……N−……AttractionS−N…………−SRepulsion
Answer» Question 4 Column I shows different positions in which one pole of a magnet is placed near that of the other. Column II indicates the resulting action between them for each situation. Fill in the blanks. $\begin{matrix} C o l u m n I & C o l u m n I I N - N & \dots \dots N - \dots \dots & A t t r a c t i o n S - N & \dots \dots \dots \dots - S & R e p u l s i o n \end{matrix}$

1520.

Question 4 Column I shows different positions in which one pole of a magnet is placed near that of the other. Column II indicates the resulting action between them for each situation. Fill in the blanks. Column IColumn IIN−N……N−……AttractionS−N…………−SRepulsion

Answer»

Question 4

Column I shows different positions in which one pole of a magnet is placed near that of the other. Column II indicates the resulting action between them for each situation. Fill in the blanks.

$\begin{matrix} C o l u m n I & C o l u m n I I N - N & \dots \dots N - \dots \dots & A t t r a c t i o n S - N & \dots \dots \dots \dots - S & R e p u l s i o n \end{matrix}$

Discussion

1521.	A man is in front of stairs. There are n stairs. He can take either one step or two step at a moment. Number of ways in which he can climb he stairs.
Answer» A man is in front of stairs. There are n stairs. He can take either one step or two step at a moment. Number of ways in which he can climb he stairs.

Discussion

1522.	1) A stone is falling freely from rest and the total distance covered by it in the last second of its motion equals the distance covered by it in the first 3 seconds of its motion. How long does the stone remain in air?
Answer» 1) A stone is falling freely from rest and the total distance covered by it in the last second of its motion equals the distance covered by it in the first 3 seconds of its motion. How long does the stone remain in air?

Discussion

1523.	The appropriate unit for measuring the distance of stars from the earth is:
Answer» The appropriate unit for measuring the distance of stars from the earth is:

Discussion

1524.	Which of the following modes of transportation was used by the early man?
Answer» Which of the following modes of transportation was used by the early man?

Discussion

1525.	In a dry cell, the end with the metal cap is the ______________ terminal.
Answer» In a dry cell, the end with the metal cap is the ______________ terminal.

Discussion

1526.	A car battery contains many cells. True or false?
Answer» A car battery contains many cells. True or false?

Discussion

1527.	If m0 and m are rest mass and moving mass of a body, then its kinetic energy is? 1)mc^2 2) (m-m0)c^2 3) m0c^2 4) (m+m0)c^2
Answer» If m0 and m are rest mass and moving mass of a body, then its kinetic energy is? 1)mc^2 2) (m-m0)c^2 3) m0c^2 4) (m+m0)c^2

Discussion

1528.	The area of a rectangle of length 'l' and breadth 'b' is given as
Answer» The area of a rectangle of length ' $l$ ' and breadth ' $b$ ' is given as

Discussion

1529.	When a fast moving carrom striker horizantally hits at the bottom of the pile the bottom most coin moves out quickly while other coins fall vertically down on the table.The reason behind falling of other coins on the tabl
Answer» When a fast moving carrom striker horizantally hits at the bottom of the pile the bottom most coin moves out quickly while other coins fall vertically down on the table.The reason behind falling of other coins on the tabl

Discussion

1530.	A lunar eclipse occurs on ___ day.
Answer» A lunar eclipse occurs on ___ day.

Discussion

1531.	List the units and instruments used for measuring time.
Answer» List the units and instruments used for measuring time.

Discussion

1532.	The word Atom is derived from Greek word - 'Atomos' which means
Answer» The word Atom is derived from Greek word - 'Atomos' which means

Discussion

1533.	Question 5 Paheli observed the shadow of a tree at 8:00 a.m., 12:00 noon and 3:00 p.m. Which of the following statements is closest to her observation about the shape and size of the shadow? (a) The shape of the shadow of the tree changes but the size remains the same. (b) The size of the shadow of the tree changes but the shape remains the same. (c) Both the size and shape of the shadow of the tree change. (d) Neither the shape nor the size of the shadow changes.
Answer» Question 5 Paheli observed the shadow of a tree at 8:00 a.m., 12:00 noon and 3:00 p.m. Which of the following statements is closest to her observation about the shape and size of the shadow? (a) The shape of the shadow of the tree changes but the size remains the same. (b) The size of the shadow of the tree changes but the shape remains the same. (c) Both the size and shape of the shadow of the tree change. (d) Neither the shape nor the size of the shadow changes.

1533.

Question 5 Paheli observed the shadow of a tree at 8:00 a.m., 12:00 noon and 3:00 p.m. Which of the following statements is closest to her observation about the shape and size of the shadow? (a) The shape of the shadow of the tree changes but the size remains the same. (b) The size of the shadow of the tree changes but the shape remains the same. (c) Both the size and shape of the shadow of the tree change. (d) Neither the shape nor the size of the shadow changes.

Answer»

Question 5

Paheli observed the shadow of a tree at 8:00 a.m., 12:00 noon and 3:00 p.m. Which of the following statements is closest to her observation about the shape and size of the shadow?

(a) The shape of the shadow of the tree changes but the size remains the same.

(b) The size of the shadow of the tree changes but the shape remains the same.

(c) Both the size and shape of the shadow of the tree change.

(d) Neither the shape nor the size of the shadow changes.

Discussion

1534.	Why do we sweat while cycling?
Answer» Why do we sweat while cycling?

Discussion

1535.	16.25L of H2 gas diffuses through a porous partition in 40 seconds. Volume of O2 gas diffusing under similar conditions in 20 seconds will be
Answer» 16.25L of H2 gas diffuses through a porous partition in 40 seconds. Volume of O2 gas diffusing under similar conditions in 20 seconds will be

Discussion

1536.	Which of the following is/are characteristics of an efficient machine?
Answer» Which of the following is/are characteristics of an efficient machine?

Discussion

1537.	A conductor of length l and mass m is placed along east-west line o. A table. Suddenly a certain amount of charge is passed through it and it is found to jump to a height h. The earth's magnetic induction is B. The charge passed through the conductor is how much?
Answer» A conductor of length l and mass m is placed along east-west line o. A table. Suddenly a certain amount of charge is passed through it and it is found to jump to a height h. The earth's magnetic induction is B. The charge passed through the conductor is how much?

Discussion

1538.	In a hydropower plant
Answer» In a hydropower plant

Discussion

1539.	Can you guess who the Flying-man is?Choose your answer.• The Flying-man is Superman.• The Flying-man is a pilot.• The Flying-man is an astronaut.• The Flying-man is Batman.Now talk about him.
Answer» Can you guess who the Flying-man is? Choose your answer. • The Flying-man is Superman. • The Flying-man is a pilot. • The Flying-man is an astronaut. • The Flying-man is Batman. Now talk about him.

Discussion

1540.	A device which is used to break or complete an electric circuit is called __________.
Answer» A device which is used to break or complete an electric circuit is called __________.

Discussion

1541.	Where is the electricity used at home generated? How does it reach out houses?
Answer» Where is the electricity used at home generated? How does it reach out houses?

Discussion

1542.	अपने आस-पास के कुछ सामाजिक कार्यकर्ताओं से बातचीत कर उसके आधार पर एक रिपोर्ट तैयार कीजिए।
Answer» अपने आस-पास के कुछ सामाजिक कार्यकर्ताओं से बातचीत कर उसके आधार पर एक रिपोर्ट तैयार कीजिए।

Discussion

1543.	Two short magnets of equal dipole moment M are fastened from ends at an angle 120∘ as given in the figure. One of the magnet is perpendicular to the direction of magnetic field B. Find the required work to rotate the magnet such that both magnets make equal angles with the magnetic field ?
Answer» Two short magnets of equal dipole moment $M$ are fastened from ends at an angle $120^{\circ}$ as given in the figure. One of the magnet is perpendicular to the direction of magnetic field $B$ . Find the required work to rotate the magnet such that both magnets make equal angles with the magnetic field ?

Discussion

1544.	In what ways is an image different from a shadow?
Answer» In what ways is an image different from a shadow?

Discussion

1545.	What is binary star
Answer» What is binary star

Discussion

1546.	Which of the below-mentioned options correctly defines the motion of pencil used in compass to draw a circle?
Answer» Which of the below-mentioned options correctly defines the motion of pencil used in compass to draw a circle?

Discussion

1547.	why for an heat pump coefficient of performance is Q1/W
Answer» why for an heat pump coefficient of performance is Q1/W

Discussion

1548.	SI unit of area is ____
Answer» SI unit of area is ____

Discussion

1549.	An accurate simple pendulum is taken at the ground floor of a building. Now it is taken to the first floor which is at a height of 200m from the ground floor and then the time period is again measured. What will be the change in the time period of the pendulum?
Answer» An accurate simple pendulum is taken at the ground floor of a building. Now it is taken to the first floor which is at a height of 200m from the ground floor and then the time period is again measured. What will be the change in the time period of the pendulum?

Discussion

1550.	126. A dip circle is at right angles to the magneticmeridian. What will be the apparent dip?(a) 0^° (c) 60(b) 30^° (d) 90^°
Answer» 126. A dip circle is at right angles to the magneticmeridian. What will be the apparent dip?(a) 0^° (c) 60(b) 30^° (d) 90^°

Discussion

Explore topic-wise InterviewSolutions in .

What does the underlined preposition indicate? Mr. Mallik scooped his food with a spoon.

Should we consider air friction while drawing free body diagram?

Question 3 (c) Fill in the blanks in the following statements: (c) To move a loaded trolley we have to ___ it.

Reflection of light takes place when light falls on:

150 J work is done when a 15 N force is applied to an object. The object covers a displacement equal to ____ m.10

Class III levers have mechanical advantage less than one. Why are they then used?

Question 3 (b)Give reasons(b) A gas exerts pressure on the walls of the container.

Which of the following statements is incorrect?

If a magnet is placed on a frictionless plate with pins spread on it, then________.

Concrete is an example of ____ object.

light year is the unit of

difference between convergent and divergent rays.

The possibility of Earth coming in between the sun and the moon is once a month. Why don't we experience an eclipse every month?

Is weight a vector ?

what is refractive inde

Choose the option which labels the diagram correctly.

Loud noise can break glass panes. Which of the following conclusions can be drawn from this? I. Sound is a form of energy. II. Sound can’t travel through vacuum. III. Sound can be used to do work.

If the efficiency of a machine is 10 % and the work done on a machine is 2000 J, then what is the work done by the machine?

Question 4 Column I shows different positions in which one pole of a magnet is placed near that of the other. Column II indicates the resulting action between them for each situation. Fill in the blanks. Column IColumn IIN−N……N−……AttractionS−N…………−SRepulsion

A man is in front of stairs. There are n stairs. He can take either one step or two step at a moment. Number of ways in which he can climb he stairs.

1) A stone is falling freely from rest and the total distance covered by it in the last second of its motion equals the distance covered by it in the first 3 seconds of its motion. How long does the stone remain in air?

The appropriate unit for measuring the distance of stars from the earth is:

Which of the following modes of transportation was used by the early man?

In a dry cell, the end with the metal cap is the ______________ terminal.

A car battery contains many cells. True or false?

If m0 and m are rest mass and moving mass of a body, then its kinetic energy is? 1)mc^2 2) (m-m0)c^2 3) m0c^2 4) (m+m0)c^2

The area of a rectangle of length 'l' and breadth 'b' is given as

When a fast moving carrom striker horizantally hits at the bottom of the pile the bottom most coin moves out quickly while other coins fall vertically down on the table.The reason behind falling of other coins on the tabl

A lunar eclipse occurs on ___ day.

List the units and instruments used for measuring time.

The word Atom is derived from Greek word - 'Atomos' which means

Why do we sweat while cycling?

16.25L of H2 gas diffuses through a porous partition in 40 seconds. Volume of O2 gas diffusing under similar conditions in 20 seconds will be

Which of the following is/are characteristics of an efficient machine?

A conductor of length l and mass m is placed along east-west line o. A table. Suddenly a certain amount of charge is passed through it and it is found to jump to a height h. The earth's magnetic induction is B. The charge passed through the conductor is how much?

In a hydropower plant

Can you guess who the Flying-man is?Choose your answer.• The Flying-man is Superman.• The Flying-man is a pilot.• The Flying-man is an astronaut.• The Flying-man is Batman.Now talk about him.

A device which is used to break or complete an electric circuit is called __________.

Where is the electricity used at home generated? How does it reach out houses?

अपने आस-पास के कुछ सामाजिक कार्यकर्ताओं से बातचीत कर उसके आधार पर एक रिपोर्ट तैयार कीजिए।

Two short magnets of equal dipole moment M are fastened from ends at an angle 120∘ as given in the figure. One of the magnet is perpendicular to the direction of magnetic field B. Find the required work to rotate the magnet such that both magnets make equal angles with the magnetic field ?

In what ways is an image different from a shadow?

What is binary star

Which of the below-mentioned options correctly defines the motion of pencil used in compass to draw a circle?

why for an heat pump coefficient of performance is Q1/W

SI unit of area is ____

An accurate simple pendulum is taken at the ground floor of a building. Now it is taken to the first floor which is at a height of 200m from the ground floor and then the time period is again measured. What will be the change in the time period of the pendulum?

126. A dip circle is at right angles to the magneticmeridian. What will be the apparent dip?(a) 0^° (c) 60(b) 30^° (d) 90^°