3752 + Interview Questions in Physics Page 27 InterviewSolution

1301.	what is CN1,CN2,CN3,CN4 IN fcc lattic
Answer» what is CN1,CN2,CN3,CN4 IN fcc lattic

Discussion

1302.	A weightlifter lifts the weight with the help of his hand and has to apply a large force to do this. The force(s) acting on the weights is/are _____
Answer» A weightlifter lifts the weight with the help of his hand and has to apply a large force to do this. The force(s) acting on the weights is/are _____

Discussion

1303.	Are electromagnetic forces affected by the presence of other bodies and intervening medium?
Answer» Are electromagnetic forces affected by the presence of other bodies and intervening medium?

Discussion

1304.	What is induced magnetism?
Answer» What is induced magnetism?

Discussion

1305.	Give one word for : (a) The motion of a body which changes direction continually. (b) The motion of a body which completes one round in the same time, every time. (c) The ratio of the distance travelled to the time taken to do it.
Answer» Give one word for : (a) The motion of a body which changes direction continually. (b) The motion of a body which completes one round in the same time, every time. (c) The ratio of the distance travelled to the time taken to do it.

1305.

Give one word for : (a) The motion of a body which changes direction continually. (b) The motion of a body which completes one round in the same time, every time. (c) The ratio of the distance travelled to the time taken to do it.

Answer»

Give one word for :

(a) The motion of a body which changes direction continually.

(b) The motion of a body which completes one round in the same time, every time.

(c) The ratio of the distance travelled to the time taken to do it.

Discussion

1306.	What is a light year??
Answer» What is a light year??

Discussion

1307.	Which of the following is an correct match?
Answer» Which of the following is an correct match?

Discussion

1308.	Which of the following machines utilize a wheel and axle?
Answer» Which of the following machines utilize a wheel and axle?

Discussion

1309.	Which of the following is Ursa major constellation?
Answer» Which of the following is Ursa major constellation?

Discussion

1310.	How is friction between coins and carrom board affected when some powder is sprinkled on the carrom board?
Answer» How is friction between coins and carrom board affected when some powder is sprinkled on the carrom board?

Discussion

1311.	Do electric field lines pass through insulators? Why/ why not
Answer» Do electric field lines pass through insulators? Why/ why not

Discussion

1312.	Question 3A circle of maximum possible size is cut from a square sheet of board. Subsequently, a square of maximum possible size is cut from the resultant circle. What will be the area of the final square?(a) 34 of original square (b) 12 of original square(c) 14 of original square (d) 23 of original square
Answer» Question 3 A circle of maximum possible size is cut from a square sheet of board. Subsequently, a square of maximum possible size is cut from the resultant circle. What will be the area of the final square? (a) $\frac{3}{4}$ of original square (b) $\frac{1}{2}$ of original square (c) $\frac{1}{4}$ of original square (d) $\frac{2}{3}$ of original square

1312.

Question 3A circle of maximum possible size is cut from a square sheet of board. Subsequently, a square of maximum possible size is cut from the resultant circle. What will be the area of the final square?(a) 34 of original square (b) 12 of original square(c) 14 of original square (d) 23 of original square

Answer»

Question 3

A circle of maximum possible size is cut from a square sheet of board. Subsequently, a square of maximum possible size is cut from the resultant circle. What will be the area of the final square?

(a) $\frac{3}{4}$ of original square (b) $\frac{1}{2}$ of original square

(c) $\frac{1}{4}$ of original square (d) $\frac{2}{3}$ of original square

Discussion

1313.	In a circus you might have seen an event in which a person lies down on a bed of sharp nails. Why do the nails not hurt the circus performer?
Answer» In a circus you might have seen an event in which a person lies down on a bed of sharp nails. Why do the nails not hurt the circus performer?

Discussion

1314.	निम्नलिखित प्रश्न का उत्तर (25-30 शब्दों में) लिखिए − बुढ़िया के दु:ख को देखकर लेखक को अपने पड़ोस की संभ्रांत महिला की याद क्यों आई?
Answer» निम्नलिखित प्रश्न का उत्तर (25-30 शब्दों में) लिखिए − बुढ़िया के दु:ख को देखकर लेखक को अपने पड़ोस की संभ्रांत महिला की याद क्यों आई?

1314.

निम्नलिखित प्रश्न का उत्तर (25-30 शब्दों में) लिखिए − बुढ़िया के दु:ख को देखकर लेखक को अपने पड़ोस की संभ्रांत महिला की याद क्यों आई?

Answer»

निम्नलिखित प्रश्न का उत्तर (25-30 शब्दों में) लिखिए −

बुढ़िया के दु:ख को देखकर लेखक को अपने पड़ोस की संभ्रांत महिला की याद क्यों आई?

Discussion

1315.	There is some unknown volume of water in a tumbler of 2 L capacity. When 600 mL of water was added to the tumbler, it is observed that the tumbler was three-fourth filled. What is the initial volume of water in the tumbler?
Answer» There is some unknown volume of water in a tumbler of 2 L capacity. When 600 mL of water was added to the tumbler, it is observed that the tumbler was three-fourth filled. What is the initial volume of water in the tumbler?

Discussion

1316.	The position of a particle varies with time as x = (t-2)^2, where x is in meters and t is in seconds. Calculate the work done during t =0 to t = 4s , if mass of the particle is 100g1. 0.4 J2. 0.2 J3. 0.8 J4. Zero
Answer» The position of a particle varies with time as x = (t-2)^2, where x is in meters and t is in seconds. Calculate the work done during t =0 to t = 4s , if mass of the particle is 100g 1. 0.4 J 2. 0.2 J 3. 0.8 J 4. Zero

Discussion

1317.	Explain cellular junction.
Answer» Explain cellular junction.

Discussion

1318.	Write notes on :(a) Magnetic energy(b) Electrical energy − generation and uses.(c) Gobar gas − production and uses.
Answer» Write notes on : (a) Magnetic energy (b) Electrical energy − generation and uses. (c) Gobar gas − production and uses.

1318.

Write notes on :(a) Magnetic energy(b) Electrical energy − generation and uses.(c) Gobar gas − production and uses.

Answer»

Write notes on :

(a) Magnetic energy

(b) Electrical energy − generation and uses.

(c) Gobar gas − production and uses.

Discussion

1319.	A body is dropped from a height the time taken to cover second half of the journeyis
Answer» A body is dropped from a height the time taken to cover second half of the journeyis

Discussion

1320.	Which of the following is the correct way of writing a unit of length?
Answer» Which of the following is the correct way of writing a unit of length?

Discussion

1321.	Why should the size of the aperture be small in the pin hole camera?
Answer» Why should the size of the aperture be small in the pin hole camera?

Discussion

1322.	Classify the objects or materials given below as opaque, transparent or translucent and luminous or non-luminous:Air, water, a piece of rock, a sheet of aluminium, a mirror, a wooden board, a sheet of polythene, a CD, smoke, a sheet of plane glass, fog, a piece of red hot iron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon paper, the flame of a gas burner, a sheet of cardboard, a lighted torch, a sheet of cellophane, a wire mesh, kerosene stove, sun, firefly, moon.
Answer» Classify the objects or materials given below as opaque, transparent or translucent and luminous or non-luminous: Air, water, a piece of rock, a sheet of aluminium, a mirror, a wooden board, a sheet of polythene, a CD, smoke, a sheet of plane glass, fog, a piece of red hot iron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon paper, the flame of a gas burner, a sheet of cardboard, a lighted torch, a sheet of cellophane, a wire mesh, kerosene stove, sun, firefly, moon.

1322.

Classify the objects or materials given below as opaque, transparent or translucent and luminous or non-luminous:Air, water, a piece of rock, a sheet of aluminium, a mirror, a wooden board, a sheet of polythene, a CD, smoke, a sheet of plane glass, fog, a piece of red hot iron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon paper, the flame of a gas burner, a sheet of cardboard, a lighted torch, a sheet of cellophane, a wire mesh, kerosene stove, sun, firefly, moon.

Answer»

Classify the objects or materials given below as opaque, transparent or translucent and luminous or non-luminous:

Air, water, a piece of rock, a sheet of aluminium, a mirror, a wooden board, a sheet of polythene, a CD, smoke, a sheet of plane glass, fog, a piece of red hot iron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon paper, the flame of a gas burner, a sheet of cardboard, a lighted torch, a sheet of cellophane, a wire mesh, kerosene stove, sun, firefly, moon.

Discussion

1323.	Explain why the bulb would not glow in the arrangement shown in Fig.12.13.
Answer» Explain why the bulb would not glow in the arrangement shown in Fig.12.13.

1323.

Explain why the bulb would not glow in the arrangement shown in Fig.12.13.

Answer»

Explain why the bulb would not glow in the arrangement shown in Fig.12.13.

Discussion

1324.	Why earth is odd from the sun,stars,and fire
Answer» Why earth is odd from the sun,stars,and fire

Discussion

1325.	Why do electricians wear rubber gloves?
Answer» Why do electricians wear rubber gloves?

Discussion

1326.	The current produced by a generator with slip rings will have which of the following current variations with time as output ?
Answer» The current produced by a generator with slip rings will have which of the following current variations with time as output ?

Discussion

1327.	What are magnetic materials and non-magnetic materials? Give any three examples.
Answer» What are magnetic materials and non-magnetic materials? Give any three examples.

Discussion

1328.	The length of a pendulum is measured as 20.0 cm. The time interval for 100 oscillations is measured as 90 s with a stop watch of 1 s resolution. Find the approximate percentage error in g to the nearest integer.
Answer» The length of a pendulum is measured as 20.0 cm. The time interval for 100 oscillations is measured as 90 s with a stop watch of 1 s resolution. Find the approximate percentage error in g to the nearest integer.

Discussion

1329.	What work or displacement of an object is done by light energy? How does light energy exert force?
Answer» What work or displacement of an object is done by light energy? How does light energy exert force?

Discussion

1330.	A small bar magnet is placed in a horizontal plane with its axis in the magnetic meridian. Neutral points are obtained on its equatorial line at 12.5 cm from the centre of the magnet. The earth's magnetic field at the place is 0.38 G and the angle of dip is zero.Find the (a)total magnetic field on the axis of the magnet at 12.5 cm from the centre of the magnet.(B)Locate the neutral point when the magnet is turned by 180
Answer» A small bar magnet is placed in a horizontal plane with its axis in the magnetic meridian. Neutral points are obtained on its equatorial line at 12.5 cm from the centre of the magnet. The earth's magnetic field at the place is 0.38 G and the angle of dip is zero.Find the (a)total magnetic field on the axis of the magnet at 12.5 cm from the centre of the magnet.(B)Locate the neutral point when the magnet is turned by 180

Discussion

1331.	A ballon of volume v and density d is moving in upward direction in air. If the density of air is D then what will be the effective upward acceleration of the body?
Answer» A ballon of volume v and density d is moving in upward direction in air. If the density of air is D then what will be the effective upward acceleration of the body?

Discussion

1332.	A star is 1.45 parsec away. How much parallax willthis star show when viewed from two locations of theearth six months apart in its orbit around the sun?
Answer» A star is 1.45 parsec away. How much parallax willthis star show when viewed from two locations of theearth six months apart in its orbit around the sun?

Discussion

1333.	Which of the following are examples of simple machines?
Answer» Which of the following are examples of simple machines?

Discussion

1334.	Reading in farhenheit is 3 times reading in Celsius at what temperature
Answer» Reading in farhenheit is 3 times reading in Celsius at what temperature

Discussion

1335.	A car is moving at a speed of 7 m/s. What will be the time taken by the car to travel 28 m ?
Answer» A car is moving at a speed of $7 m / s$ . What will be the time taken by the car to travel $28 m$ ?

Discussion

1336.	'फल तो किसी दूसरी शक्ति पर निर्भर है' − पाठ के संदर्भ में इस पंक्ति का आश्य स्पष्ट कीजिए।
Answer» 'फल तो किसी दूसरी शक्ति पर निर्भर है' − पाठ के संदर्भ में इस पंक्ति का आश्य स्पष्ट कीजिए।

Discussion

1337.	64.: In the circuit shown below, the current that flows from a to b when the switch s is closed:
Answer» 64.: In the circuit shown below, the current that flows from a to b when the switch s is closed:

Discussion

1338.	The point of application of force (-2, 4 ,7) is displaced from the point (3,-5, 1) to the point (5, 9, 7). But the force is suddenly halved when the point of application moves half the distance. Find the work done.
Answer» The point of application of force (-2, 4 ,7) is displaced from the point (3,-5, 1) to the point (5, 9, 7). But the force is suddenly halved when the point of application moves half the distance. Find the work done.

Discussion

1339.	Change in which of the following physical properties can transform matter from one state to another?
Answer» Change in which of the following physical properties can transform matter from one state to another?

Discussion

1340.	How do surfac†an ts reduce surface tension?
Answer» How do surfac†an ts reduce surface tension?

Discussion

1341.	Which of the following is preferred for clinical thermometers?
Answer» Which of the following is preferred for clinical thermometers?

Discussion

1342.	Is light an opaque object? Explain
Answer» Is light an opaque object? Explain

Discussion

1343.	ehivh of the following measurement is more accurate 1)40 m 2)0.04m 3)0.040m 4) 0.4
Answer» ehivh of the following measurement is more accurate 1)40 m 2)0.04m 3)0.040m 4) 0.4

Discussion

1344.	Which of the following is a magnetic substance?
Answer» Which of the following is a magnetic substance?

Discussion

1345.	What are the standard units of mass, length and time in the(a) CGS system?(b) SI system?
Answer» What are the standard units of mass, length and time in the (a) CGS system? (b) SI system?

Discussion

1346.	Two rectangular boxes have the same height and length, but different widths as shown in the figure. The difference in the volume of the boxes is 360 cm3. Find the height of the Box 1.
Answer» Two rectangular boxes have the same height and length, but different widths as shown in the figure. The difference in the volume of the boxes is 360 $c m^{3}$ . Find the height of the Box 1.

Discussion

1347.	Name a force that always opposes motion.
Answer» Name a force that always opposes motion.

Discussion

1348.	Name the natural luminous object.
Answer» Name the natural luminous object.

Discussion

1349.	A small compass needle of magnetic moment m and moment of inertia I is free to oscillate in a magnetic field B.It is slightly disturbed from its equilibrium position and then released.Show that it executes simple harmonic motion.Hence write the expression for its time period
Answer» A small compass needle of magnetic moment m and moment of inertia I is free to oscillate in a magnetic field B.It is slightly disturbed from its equilibrium position and then released.Show that it executes simple harmonic motion.Hence write the expression for its time period

Discussion

1350.	Question 115(ii)Express the following in standard form:A helium atom has a diameter of 0.000000022cm.
Answer» Question 115(ii) Express the following in standard form: A helium atom has a diameter of $0.000000022 c m .$

1350.

Question 115(ii)Express the following in standard form:A helium atom has a diameter of 0.000000022cm.

Answer»

Question 115(ii)

Express the following in standard form:

A helium atom has a diameter of $0.000000022 c m .$

Discussion

Explore topic-wise InterviewSolutions in .

what is CN1,CN2,CN3,CN4 IN fcc lattic

A weightlifter lifts the weight with the help of his hand and has to apply a large force to do this. The force(s) acting on the weights is/are _____

Are electromagnetic forces affected by the presence of other bodies and intervening medium?

What is induced magnetism?

Give one word for : (a) The motion of a body which changes direction continually. (b) The motion of a body which completes one round in the same time, every time. (c) The ratio of the distance travelled to the time taken to do it.

What is a light year??

Which of the following is an correct match?

Which of the following machines utilize a wheel and axle?

Which of the following is Ursa major constellation?

How is friction between coins and carrom board affected when some powder is sprinkled on the carrom board?

Do electric field lines pass through insulators? Why/ why not

In a circus you might have seen an event in which a person lies down on a bed of sharp nails. Why do the nails not hurt the circus performer?

There is some unknown volume of water in a tumbler of 2 L capacity. When 600 mL of water was added to the tumbler, it is observed that the tumbler was three-fourth filled. What is the initial volume of water in the tumbler?

The position of a particle varies with time as x = (t-2)^2, where x is in meters and t is in seconds. Calculate the work done during t =0 to t = 4s , if mass of the particle is 100g1. 0.4 J2. 0.2 J3. 0.8 J4. Zero

Explain cellular junction.

Write notes on :(a) Magnetic energy(b) Electrical energy − generation and uses.(c) Gobar gas − production and uses.

A body is dropped from a height the time taken to cover second half of the journeyis

Which of the following is the correct way of writing a unit of length?

Why should the size of the aperture be small in the pin hole camera?

Explain why the bulb would not glow in the arrangement shown in Fig.12.13.

Why earth is odd from the sun,stars,and fire

Why do electricians wear rubber gloves?

The current produced by a generator with slip rings will have which of the following current variations with time as output ?

What are magnetic materials and non-magnetic materials? Give any three examples.

The length of a pendulum is measured as 20.0 cm. The time interval for 100 oscillations is measured as 90 s with a stop watch of 1 s resolution. Find the approximate percentage error in g to the nearest integer.

What work or displacement of an object is done by light energy? How does light energy exert force?

A ballon of volume v and density d is moving in upward direction in air. If the density of air is D then what will be the effective upward acceleration of the body?

A star is 1.45 parsec away. How much parallax willthis star show when viewed from two locations of theearth six months apart in its orbit around the sun?

Which of the following are examples of simple machines?

Reading in farhenheit is 3 times reading in Celsius at what temperature

A car is moving at a speed of 7 m/s. What will be the time taken by the car to travel 28 m ?

'फल तो किसी दूसरी शक्ति पर निर्भर है' − पाठ के संदर्भ में इस पंक्ति का आश्य स्पष्ट कीजिए।

64.: In the circuit shown below, the current that flows from a to b when the switch s is closed:

The point of application of force (-2, 4 ,7) is displaced from the point (3,-5, 1) to the point (5, 9, 7). But the force is suddenly halved when the point of application moves half the distance. Find the work done.

Change in which of the following physical properties can transform matter from one state to another?

How do surfac†an ts reduce surface tension?

Which of the following is preferred for clinical thermometers?

Is light an opaque object? Explain

ehivh of the following measurement is more accurate 1)40 m 2)0.04m 3)0.040m 4) 0.4

Which of the following is a magnetic substance?

What are the standard units of mass, length and time in the(a) CGS system?(b) SI system?

Two rectangular boxes have the same height and length, but different widths as shown in the figure. The difference in the volume of the boxes is 360 cm3. Find the height of the Box 1.

Name a force that always opposes motion.

Name the natural luminous object.

A small compass needle of magnetic moment m and moment of inertia I is free to oscillate in a magnetic field B.It is slightly disturbed from its equilibrium position and then released.Show that it executes simple harmonic motion.Hence write the expression for its time period

Question 115(ii)Express the following in standard form:A helium atom has a diameter of 0.000000022cm.