Question # 1

Crests and troughs are formed in:

Choose an answer

Longitudinal waves

Transverse waves

Both of these

None of these

Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of

Choose an answer

very small energy

very large energy

frictional forces

acceleration due to gravity

Which one is not produced by sound waves in air?

Choose an answer

Polarization

Diffraction

Refraction

Reflection

The bob of a simple pendulum is suspended by

Choose an answer

string

heavy inextensible string

light extensible string

light inextensible string

The phase determines the

Choose an answer

displacement

amplitude

frequency

state of motion of vibrating body

It two waves of amplitude 'a' produce a resultant wave of amplitude a, then the phase difference between them will be

Choose an answer

60°

90°

120°

180°

In compressional wave,the layer of medium having reduced pressure is called:

Choose an answer

Compression

Elasticity

Node

Rarefaction

In the production of beats by 2 waves of same amplitude and nearly same frequency, the maximum intensity to each of the constituent waves is

Choose an answer

Same

2 times

4 times

8 times

The weight 'mg' of the bob is resolved into

Choose an answer

one component

two components

three components

four components

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

Choose an answer

frequency of S.H.M

period of S.H.M

wave form

none of them

The velocity of sound in air not effected by changes in

Choose an answer

Moisture contents in air

Temperature of air

The atmosphere pressure

The composition of air

Which of the following does not exhibit S.H.M?

Choose an answer

a plucked violin string

a mass attached to a spring

a train shunting between two terminals

a simple pendulum

As the bob of the pendulum moves to and fro which of the force is experienced by the bob

Choose an answer

its weight

tension in the string

viscous drag force by air

all of them

Which one of the following wave motions is transverse:

Choose an answer

Wave motion produced in water when a piece of stone is thrown into it

Pulling of weight hanging vertically with a spiral spring

Both of these

None of these

In solids, only following type/s of wave can travel:

Choose an answer

Transverse

Longitudinal

Both A and B

None of them

There is no net transfer of energy by particle of medium in

Choose an answer

Longitudinal wave

Transverse wave

Progressive wave

Stationary wave

When an oscillatory motion repeats itself, then this type of motion is called

Choose an answer

vibratory motion

constant motion

fixed motion

periodic motion

The principle of superposition states that

Choose an answer

The total displacement due to several waves is the sum of the displacement due to those waves acting individually

Two stationary waves superimpose to give two progressive waves

A diffraction pattern consists of many interference patterns superimposed on one another

Two progressive waves superimpose to give a stationary wave

When a body is pulled away from its rest or equilibrium position and then released, the body oscillates due to

Choose an answer

applied force

momentum

restoring force

none of them

The expression of Hook's law is

Choose an answer

F=ma

F=kx

F= -kx

-kx=ma

The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be

Choose an answer

1 : 2

4 : 1

1 : 4

2 : 1

One complete round trip of the body about its mean position is called

Choose an answer

displacement

vibration

a complete motion

an acceleration

Ultra-violet rays differ from X-rays in that they

Choose an answer

Cannot be diffracted

Cannot be polarized

Have a lower frequency

Are deviated when they pass through a magnetic field

Acceleration of the mass at any instant is given by

Choose an answer

a=k/m x

a= - m/k x

a = - k/m x

a=m/k x

A physical system under going forced vibrations is known as

Choose an answer

Simple harmonic oscillator

Compound harmonic oscillator

Physical harmonic oscillator

driven harmonic oscillator

Transverse waves can be set up:

Choose an answer

Solids

Liquids

Gases

All of them

The natural frequency of a pendulum which is vibrating freely, depends upon its

Choose an answer

mass

length

material

all of them

A wave, which transfer energy by moving away from the source of disturbance is called a

Choose an answer

progressive wave

travelling wave

both of them

none of them

In the formula for finding the speed of waves in the spring, unit of m in SIn units is:

Choose an answer

kg

kg-meter

kg/meter

Meter/kg

When the bob of simple pendulum is at extreme position, its K.E. will be

Choose an answer

maximum

minimum

zero

all of them

For transmission of both transverse and longitudinal waves, we can use:

Choose an answer

Solid

Gas

Plasma

None of these

More Classes

Other Links

ECAT Pre General Science Physics Chapter 8 Waves Online Test 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

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