ECAT Pre Computer Science Chapter 8 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 8 Waves

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

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ECAT Physics Chapter 8 Waves

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Question # 1

Smaller the damping, greater will be the

Question # 2

In the same medium, velocity of the wave:

Question # 3

The principle of superposition states that

Question # 4

The force which opposes the applied force producing the displacement in the spring is called

Question # 5

Shock absorber of the car is an example of

Question # 6

If F=0.04 N and X=4 cm then K=

Question # 7

The waves which propagate out in the space due to oscillations of electric and magnetic fields are called:

Question # 8

The loudness and pitch of a sound note depends on

Question # 9

The speed of sound in a medium depends on

Question # 10

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

Question # 11

When a wave is travels from one place to another, it transfers:

Question # 12

A body is executing free vibrations when it oscilates

Question # 13

SI unit of wave length is:

Question # 14

Smaller the damping, the resonance will be

Question # 15

If a wave can be polarized, it must be

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Ultra-violet rays differ from X-rays in that they
A. Cannot be diffracted
B. Cannot be polarized
C. Have a lower frequency
D. Are deviated when they pass through a magnetic field
2 When a mass 'm' is pulled slowly, the spring stretches by an amount xo, then the work done will be
A. W=Kxo
B. W=1/2Kxo
C. W=1/2Kx2o
D. W=4Kxo
3 The maximum displacement of a body on either side of its equilibrium position is called
A. frequency
B. amplitude
C. displacement
D. time period
4 The time period of pendulums of different lengths would be
A. same
B. different
C. both of them
D. none of them
5 Longitudinal waves are also called:
A. Congressional waves
B. Transverse waves
C. Radio waves
D. None of them
6 Two sound waves of slightly different frequencies propagating in the same direction produce beats due to
A. Interference
B. Diffraction
C. Polarization
D. Refraction
7 A wave, which transfer energy by moving away from the source of disturbance is called a
A. progressive wave
B. travelling wave
C. both of them
D. none of them
8 The portion of the water above its mean level forms a:
A. Crest
B. Trough
C. Both A and B
D. None of these
9 The waves produced in a microwave oven have frequency
A. 2450 Hz
B. 2450 K Hz
C. 2450 M Hz
D. 2450 G Hz
10 The total energy of spring mass system is
A. zero
B. changing with time
C. constant
D. none of them

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