Question # 1

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done in 25J. The angle which the force makes with the direction of motion will be

Choose an answer

60°

90°

30°

0°

The velocity of sound is greatest in

Choose an answer

Water

Air

Vacuum

Metal

The field around a moving charge is called

Choose an answer

magnetic field

conservative field

non-conservative field

none of these

Which of the following is/are example/s if mechanical waves i.e. waves generated in _______:

Choose an answer

Rope

Coil of spring

Water

All of them

The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon

Choose an answer

Heating effect of current

Chemical effect of current

Magnetic effect of current

Electromagnetic effect of current

The wave form of S.H.M will be

Choose an answer

square wave

sine wave

rectified wave

saw-tooth wave

The portion of the water above its mean level forms a:

Choose an answer

Crest

Trough

Both A and B

None of these

The short distance between two points direction from its initial point to final point is called:

Choose an answer

Velocity

Displacement

Speed

Distance

A ball is thrown upwards with a velocity of 100 m/s. It will reach the ground after

Choose an answer

10 s

20 s

5 s

40 s

An object thrown upward with an initial velocity at certain angle with the horizontal and moving freely under the action of gravity is called

Choose an answer

a rocket

an aeroplane

a projectile

a ballon

When a body moves to and fro motion, this type of motion is called

Choose an answer

translatory motion

circular motion

oscillatory motion

all of them

Water is flowing through a pipe under constant pressure. At some place, the pipe becomes narrow, the pressure of water at this place

Choose an answer

Increases

Decreases

Remains same

Depends upon several factors

One cannot see through fog because

Choose an answer

Fog absorbs light

The refractive index of fog is infinity

Light suffers total reflection at the droplet in a fog

Light is scattered by the droplets in fog

For glass-air boundary the critical angle θ_c is

Choose an answer

30^o

41.8^o

42.0^o

44.0^o

Torque = Force x ?

Choose an answer

Speed

Momentum

Moment arm

Couple arm

The magnitude of displacement is

Choose an answer

Distance between two points

Distance in a curved path

Shortest distance between two points

None of these

Two metallic sphere of radius 1 cm and 2 cm get equal quantity of charge. Which has greater surface charge density

Choose an answer

1^st sphere

2^nd sphere

Both get equal surface

None

In a full wave rectifier with input frequency 50Hz. The frequency of pulsating D)C) received as an output across the load is

Choose an answer

50 Hz

100 Hz

500 Hz

zero

If a gymnast sitting on a rotating table with his arms out stretched suddenly lowers his hands

Choose an answer

The angular velocity decreases

The moment of inertia decreases

The angular velocity remains constant

The angular momentum increases

Propagation of light in an optical fibre requires

Choose an answer

Total internal reflection

Continuous refraction

Both

None of these

For the monochromatic beam of X-rays, the crystal planes in a lattice act like a

Choose an answer

perfect absorbers

boundary

mirror

none of them

A prism splits a beam of white light into its seven constituent colors.This is so because

Choose an answer

Phase of different colors is diferent

Amplitude of different colors is different

Energy of different colors is different

Velocity of different colors if different

More Classes

Other Links

Physics General Science Test Medium Mode MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer