Explore topic-wise InterviewSolutions in .

This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

1701.

Which of the following arrangements are true for increasing size in their masses.

Answer»

Which of the following arrangements are true for increasing size in their masses.


1702.

लोकोक्तियों का संदर्भ सहित अर्थ स्पष्ट कीजिए। (क) चोर की दाढ़ी में तिनका (ख) ना जाने केहि भेष में नारायण मिल जाएँ (ग) चोर के घर छिछोर पैठा (घ) यह म्याऊँ का ठौर था

Answer» लोकोक्तियों का संदर्भ सहित अर्थ स्पष्ट कीजिए।


(क) चोर की दाढ़ी में तिनका



(ख) ना जाने केहि भेष में नारायण मिल जाएँ



(ग) चोर के घर छिछोर पैठा



(घ) यह म्याऊँ का ठौर था

1703.

Coal is a widely used energy resource. Which of the following energies is stored in coal?

Answer»

Coal is a widely used energy resource. Which of the following energies is stored in coal?


1704.

What phenomenon occurs at absolute zero?

Answer» What phenomenon occurs at absolute zero?
1705.

32. Two resistance 25 ohm and 5 ohm are connected in series . Another set 5 ohmnand 25 ohm are connected in serirs . These two sets are connected in parallal . At middle a confuctor is connected across parallal conbination . Fins the current in the conductor where main current of the circuit is 600 amp .

Answer» 32. Two resistance 25 ohm and 5 ohm are connected in series . Another set 5 ohmnand 25 ohm are connected in serirs . These two sets are connected in parallal . At middle a confuctor is connected across parallal conbination . Fins the current in the conductor where main current of the circuit is 600 amp .
1706.

How and why work done in round trip is zero. If somebody push a box from point A to B.then return to point A. He has lost in energy. Then why work done is zero.

Answer» How and why work done in round trip is zero. If somebody push a box from point A to B.then return to point A. He has lost in energy. Then why work done is zero.
1707.

the dis†an ce travelled by a particle starting from rest and moving with an accleration 4/3

Answer» the dis†an ce travelled by a particle starting from rest and moving with an accleration 4/3
1708.

when the traffic light turns green a car moves with a constant acceleration of 2m/s2. At the same time a truck moving with a constant speed of 10m/s, overtakes and passes the car. Draw position time curve for each vehicle.

Answer»

when the traffic light turns green a car moves with a constant acceleration of 2m/s2. At the same time a truck moving with a constant speed of 10m/s, overtakes and passes the car. Draw position time curve for each vehicle.

1709.

Friction exerted by surfaces on each other when they are at rest is called:

Answer»

Friction exerted by surfaces on each other when they are at rest is called:



1710.

types of circuit diagrams for series and parallel combination

Answer» types of circuit diagrams for series and parallel combination
1711.

How does perception of space take place?

Answer»

How
does perception of space take place?

1712.

An object is approaching a plane mirror at 10 cm-s-1. A stationary observer sees the image. At what speed will the image approach the stationary observer? A)10 cms-1 B)5 cms-1 C)15 cms-1 D)20 cms-1

Answer» An object is approaching a plane mirror at 10 cm-s-1. A stationary observer sees the image. At what speed will the image approach the stationary observer?
A)10 cms-1
B)5 cms-1
C)15 cms-1
D)20 cms-1
1713.

The uniform plank of a see-saw is 8m long and is supported in the center. A boy weighing 50 kgf sits at a distance of 2.5 m from the fulcrum. Where must another boy weighing 40 kgf sit, so as to balance the plank?

Answer»

The uniform plank of a see-saw is 8m long and is supported in the center. A boy weighing 50 kgf sits at a distance of 2.5 m from the fulcrum. Where must another boy weighing 40 kgf sit, so as to balance the plank?

1714.

A horseshoe magnet haspoles.

Answer»

A horseshoe magnet haspoles.

1715.

A body having initial kinetic energy 2 J collide with identical body at rest. The maximum loss of kinetic energy found in the collision

Answer» A body having initial kinetic energy 2 J collide with identical body at rest. The maximum loss of kinetic energy found in the collision
1716.

An object blocks the sunlight that falls on it. Discuss what property it possesses.

Answer» An object blocks the sunlight that falls on it. Discuss what property it possesses.
1717.

If the orbital radius of a satellite is changed from R to 1.01 R then change in time period of satelite is

Answer» If the orbital radius of a satellite is changed from R to 1.01 R then change in time period of satelite is
1718.

Question 1A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force. Let us take it that the force acts on the object through the displacement. What is the work done in this case?

Answer» Question 1

A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force. Let us take it that the force acts on the object through the displacement. What is the work done in this case?





1719.

A gas exerts pressure on the walls of the container because

Answer»

A gas exerts pressure on the walls of the container because


1720.

What is the primary source of wind energy?

Answer»

What is the primary source of wind energy?


1721.

when two objects in contact move in the same direction at same speed,does friction occur?

Answer» when two objects in contact move in the same direction at same speed,does friction occur?
1722.

A small coin is kept at distance r from the centreof a gramophone disc rotating at angular speed .Minimum coefficient of friction for which coin willnot slip is

Answer» A small coin is kept at distance r from the centreof a gramophone disc rotating at angular speed .Minimum coefficient of friction for which coin willnot slip is
1723.

The area of a rectangular piece of a board is 36 cm2. If the width is 4 cm of the length, what is the width of the board?

Answer»

The area of a rectangular piece of a board is 36 cm2. If the width is 4 cm of the length, what is the width of the board?



1724.

How should we store a magnet?

Answer» How should we store a magnet?
1725.

find magnetic field at one corner of an equilateral triangl

Answer» find magnetic field at one corner of an equilateral triangl
1726.

Joseph jogs from one end A to the other end B of a straight 300 m road in 2 minutes 50 seconds and then turns around and jogs 100 m back to point C in another 1 minute. What are Joseph’s average speeds and velocities in jogging (a) from A to B and (b) from A to C?

Answer» Joseph jogs from one end A to the other end B of a straight 300 m road in 2 minutes 50 seconds and then turns around and jogs 100 m back to point C in another 1 minute. What are Joseph’s average speeds and velocities in jogging (a) from A to B and (b) from A to C?
1727.

Distinguish between Comet and Asteroid.

Answer» Distinguish between Comet and Asteroid.
1728.

A car is moving on a straight road covers one third of the distance with a speed 20 km/hr and the rest with a speed of 60km /hr the average speed of a car

Answer» A car is moving on a straight road covers one third of the distance with a speed 20 km/hr and the rest with a speed of 60km /hr the average speed of a car
1729.

Classify the motion of each of the following objects correctly to complete the table below. The motion of a bell, the motion of the hands of a clock, the motion of the moon moving around the earth, the motion of a butterfly,, the motion of a bicycle wheel, the motion of a football player, the motion of a farmer’s sling. Motion Example Periodic Oscillatory Circular Random

Answer»

Classify the motion of each of the following objects correctly to complete the table below.



The motion of a bell, the motion of the hands of a clock, the motion of the moon moving around the earth, the motion of a butterfly,, the motion of a bicycle wheel, the motion of a football player, the motion of a farmer’s sling.











































Motion



Example



Periodic



Oscillatory



Circular



Random


1730.

Is light opaque, transparent or translucent?

Answer» Is light opaque, transparent or translucent?
1731.

Under what circumstances can a red shadow be formed?

Answer» Under what circumstances can a red shadow be formed?
1732.

What is inside an electric cell

Answer» What is inside an electric cell
1733.

104. A semicircular magnet of moment M and is being straighten and then new magnetic moment

Answer» 104. A semicircular magnet of moment M and is being straighten and then new magnetic moment
1734.

Two small bar magnets are placed in a line at certain distance d apart. If length of each magnet is negligible compared to d, the force between them will be inversely proportinal to

Answer» Two small bar magnets are placed in a line at certain distance d apart. If length of each magnet is negligible compared to d, the force between them will be inversely proportinal to
1735.

A force of 5 N is used to displace a block by 5 m in the first case and by 2.5 m in the second case. If the work done is W and W’ respectively, the relation between W and W’ is

Answer»

A force of 5 N is used to displace a block by 5 m in the first case and by 2.5 m in the second case. If the work done is W and W’ respectively, the relation between W and W’ is


1736.

Magnetic force acting on the charged particle projected perpendicular to magnetic field isproportional to v, where v is the speed. Find n.

Answer» Magnetic force acting on the charged particle projected perpendicular to magnetic field isproportional to v, where v is the speed. Find n.
1737.

Name a machine which is responsible for changing the point of application of force.

Answer»

Name a machine which is responsible for changing the point of application of force.


1738.

Which types of motion do we see in the movement of the hands of the clock?

Answer»

Which types of motion do we see in the movement of the hands of the clock?

1739.

In which of the following cases will a small wooden box move the furthest? Case 1: A bowling ball is thrown at the box Case 2: A tennis ball is thrown at the box Case 3: A ping-pong ball is thrown at the box Case 4: A cricket ball is thrown at the box

Answer»

In which of the following cases will a small wooden box move the furthest?

Case 1: A bowling ball is thrown at the box

Case 2: A tennis ball is thrown at the box

Case 3: A ping-pong ball is thrown at the box

Case 4: A cricket ball is thrown at the box


1740.

Use the expression for time period of oscillation of a simple pendulum as T = 2π √L/G. The measured value of L is 40.0 cm and time for 25 oscillations of the pendulum is 40 s using a stop watch. If the least count of stop watch is 0.1 s and that of meter scale is 0.1 cm. Calculate the maximum possible error in the measurement of the value of g.

Answer» Use the expression for time period of oscillation of a simple pendulum as T = 2π √L/G. The measured value of L is 40.0 cm and time for 25 oscillations of the pendulum is 40 s using a stop watch. If the least count of stop watch is 0.1 s and that of meter scale is 0.1 cm. Calculate the maximum possible error in the measurement of the value of g.
1741.

If the units of force, energy and time are 20 N, 100 J and 10 s, the units of mass and length will be

Answer» If the units of force, energy and time are 20 N, 100 J and 10 s, the units of mass and length will be
1742.

Question 7 The clear sky appears blue because(a) blue light gets absorbed in the atmosphere(b) ultraviolet radiations are absorbed in the atmosphere(c) violet and blue lights get scattered more than lights of all othercolours by the atmosphere(d) light of all other colours is scattered more than the violet andblue colour lights by the atmosphere

Answer» Question 7

The clear sky appears blue because



(a) blue light gets absorbed in the atmosphere

(b) ultraviolet radiations are absorbed in the atmosphere

(c) violet and blue lights get scattered more than lights of all other

colours by the atmosphere

(d) light of all other colours is scattered more than the violet and

blue colour lights by the atmosphere

1743.

Question 5Which of the following phenomena of light are involved in the formation of a rainbow?(a) Reflection, refraction and dispersion(b) Refraction, dispersion and total internal reflection(c) Refraction, dispersion and internal reflection(d) Dispersion, scattering and total internal reflection

Answer» Question 5

Which of the following phenomena of light are involved in the formation of a rainbow?



(a) Reflection, refraction and dispersion

(b) Refraction, dispersion and total internal reflection

(c) Refraction, dispersion and internal reflection

(d) Dispersion, scattering and total internal reflection

1744.

लेखिका को नीलकंठ की कौन-कौन सी चेष्टाएँ बहुत भाती थीं?

Answer»

लेखिका
को
नीलकंठ
की
कौन
-कौन
सी
चेष्टाएँ
बहुत
भाती
थीं
?

1745.

The least count of a stop watch is 1/5 second.The time of 20 oscillations of a pendulum is measured to be 25 second.the maximum percentage error in the measurement of time will be

Answer» The least count of a stop watch is 1/5 second.The time of 20 oscillations of a pendulum is measured to be 25 second.the maximum percentage error in the measurement of time will be
1746.

a particle is executing a linear shm along a straight line . it crosses two points A and B with equal velocity . it takes 2 seconds from A to B and return back to B in next two seconds . the time period is

Answer» a particle is executing a linear shm along a straight line . it crosses two points A and B with equal velocity . it takes 2 seconds from A to B and return back to B in next two seconds . the time period is
1747.

A piece of wire measures 24 cm. What is the measure of 4 such pieces of wire?

Answer»

A piece of wire measures 24 cm. What is the measure of 4 such pieces of wire?

1748.

Draw the electric symbol of the cell and the battery. Also, briefly mention which part of the battery symbol shows positive and negative terminals.

Answer» Draw the electric symbol of the cell and the battery. Also, briefly mention which part of the battery symbol shows positive and negative terminals.
1749.

In which direction will a freely suspended bar magnet get aligned? Why?

Answer» In which direction will a freely suspended bar magnet get aligned? Why?
1750.

a uniform cylinder is allowed to roll down an inclined plane making angle 30^° from vertical.If it rolls without slip ,then its center will move with accelerati

Answer» a uniform cylinder is allowed to roll down an inclined plane making angle 30^° from vertical.If it rolls without slip ,then its center will move with accelerati