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

An object undergoes S.H.M has maximum acceleration when its displacement form the means position

Question # 2

Example of progressive wave is

Question # 3

In stationary waves

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

Which of the following is not mechanical wave?

Question # 8

Si units of time period is

Question # 9

Decibel is unit of

Question # 10

The speed of sound in a medium depends on

Question # 11

Mechanical waves on the surface of a liquid are

Question # 12

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

Question # 13

Fidelity refers to

Question # 14

The velocity of sound in air not effected by changes in

Question # 15

If a simple pendulum is shifted from karachi to K-2 cliff, its time period

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Energy is dissipated and consequently the energy mass system do not oscillate indefinitely because of
A. very small energy
B. very large energy
C. frictional forces
D. acceleration due to gravity
2 If a wave can be polarized, it must be
A. An electromagnetic wave
B. A longitudinal wave
C. A progressive wave
D. A transverse wave
3 Energy is not carried by
A. Transverse progressive waves
B. Longitudinal vibration
C. Stationary waves
D. Electromagnetic
4 When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:
A. Longitudinal waves
B. Transverse waves
C. Water waves
D. Complex waves
5 If a simple pendulum is shifted from karachi to K-2 cliff, its time period
A. remains the same
B. decreases
C. increases
D. none of them
6 transverse wave motion is possible in:
A. Air
B. A mixture of NH3and O2
C. Strings
D. All of these
7 In compressional wave,the layer of medium having reduced pressure is called:
A. Compression
B. Elasticity
C. Node
D. Rarefaction
8 A physical system under going forced vibrations is known as
A. Simple harmonic oscillator
B. Compound harmonic oscillator
C. Physical harmonic oscillator
D. driven harmonic oscillator
9 Time period of a simple pendulum depends upon the
A. length of the pendulum
B. acceleration due to gravity
C. none of them
D. both of them
10 The characteristic of a body executing S.H.M is that its acceleration is
A. inversely proportional to displacement
B. directly proportional to displacement
C. independent of displacement
D. equal to zero

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