ECAT Pre General Science Physics Chapter 8 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 8 Waves

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 8 Waves

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ECAT Pre General Science Physics Chapter 8 Waves

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Question # 1

At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is

Question # 2

The resonance will be sharp, if the amplitude decreases rapidly at a frequency

Question # 3

Time period of a simple pendulum depends upon the

Question # 4

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

Question # 5

If two waves of length 50 cm and 51 cm produced 12 beats per second, the velocity of sound is

Question # 6

Transverse waves can be set up:

Question # 7

In case of mechanical waves, we study the motion of

Question # 8

The waves moving from a sitar to a listener in air are

Question # 9

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

Question # 10

The instantaneous velocity of a body moving along a circle is directed

Question # 11

Time period of simple pendulum is independent of

Question # 12

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

Question # 13

When a mass 'm' is pulled slowly, the spring stretches by an amount xo, then the work done will be

Question # 14

What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?

Question # 15

Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?

Question # 16

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

Question # 17

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

Question # 18

Si units of time period is

Question # 19

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

Question # 20

Which of the following medium/media can transmit both transverse and longitudinal waves:

Question # 21

The weight 'mg' of the bob is resolved into

Question # 22

Smaller the damping, greater will be the

Question # 23

It is possible to recognize a person by hearing his voice even if he is hidden behind a solid wall. This is due to the fact that his voice

Question # 24

The waves which propagate by the collision of material particles are known as

Question # 25

The waves produced in a microwave oven have wavelength.

Question # 26

For a body executing S. H. M, its

Question # 27

In a resonance situation the amplitude of the motion may become extra ordinarily large, if

Question # 28

The vibrations of factory floor caused by the running of heavy machinery is an example of

Question # 29

The square of 0.4 is:

Question # 30

In the resonance condition, the amplitude of the oscillator becomes

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola
2 Which of the following medium/media can transmit both transverse and longitudinal waves:
A. Solids
B. Liquids
C. Gases
D. All of them
3 Waves transport energy
A. without transport energy
B. with matter
C. both of them
D. none of them
4 The temperature at which the speed of sound becomes double as was at 27°C is
A. 273°C
B. 0°C
C. 927°C
D. 1027°C
5 The maximum displacement of a body on either side of its equilibrium position is called
A. frequency
B. amplitude
C. displacement
D. time period
6 At 'resonance' the transfer of energy from deriving source to the oscillator is
A. maximum
B. minimum
C. zero
D. none of them
7 Example of vibratory motion is
A. mass suspended from a spring
B. a bob of simple pendulum
C. mass attached to a spring placed
D. all of them
8 A heavily damped system has a fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
9 The bob of a simple pendulum is suspended by
A. string
B. heavy inextensible string
C. light extensible string
D. light inextensible string
10 The velocity of sound in air depends upon
A. Density and elasticity of gas
B. Pressure
C. Wavelength
D. Amplitude and frequency of sound

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