ECAT Pre Engineering Physics Chapter 8 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 8 Waves

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Physics ECAT Pre Engineering Chapter 8 Waves

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Question # 1

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

Question # 2

If the time period a simple pendulum is 2 s, its frequency would be

Question # 3

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

Question # 4

The distance covered by the wave in one second is:

Question # 5

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

Question # 6

To hear a clear echo, the reflecting surface must be at a minimum distance of

Question # 7

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

Question # 8

Which one of the following wave motions is transverse:

Question # 9

The waves which propagate through the oscillations of material particles are known as:

Question # 10

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

Question # 11

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

Question # 12

The expression for restoring force is

Question # 13

Example of progressive wave is

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 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
2 A heavily damped system has a fairly
A. sharp resonance curve
B. flat resonance curve
C. both of them
D. none of them
3 Laplace formula is derived from
A. Isothermal change
B. Adiabatic change
C. Isobaric change
D. None of these
4 The time required to complete on vibration is called
A. frequency
B. total time
C. time period
D. velocity
5 In the same medium, velocity of the wave:
A. Goes on increasing
B. Remains constant
C. Goes on decreasing
D. None of these
6 The weight 'mg' of the bob is resolved into
A. one component
B. two components
C. three components
D. four components
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 The waves moving from a sitar to a listener in air are
A. Longitudinal progressive
B. Longitudinal stationary
C. Transverse progressive
D. Transverse stationary
9 The number of vibrating body at any instant from its equilibrium position is called
A. displacement
B. frequency
C. amplitude
D. time period
10 Transverse waves can be set up:
A. Solids
B. Liquids
C. Gases
D. All of them

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