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

The expression of Hook's law is

Question # 2

A traveling wave has a shape of:

Question # 3

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

Question # 4

The restoring force always directed towards the

Question # 5

Crests and troughs are formed in:

Question # 6

Which one of the following wave motions is transverse:

Question # 7

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

Question # 8

SI unit of frequency is

Question # 9

Which one of the following is an example of resonance

Question # 10

If the amplitude of sound is doubled and the frequency reduced to one-fourth, the intensity of sound at the same point will be

Question # 11

The process in which energy is dissipated from the oscillating system is known as

Question # 12

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

Question # 13

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

Question # 14

The wave form of S.H.M will be

Question # 15

The waves which propagate out in space due to oscillation of electric and magnetic fields are known as

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The instantaneous velocity of a body moving along a circle is directed
A. along the radius
B. along the tangent
C. away from the circle
D. none of them
2 Which one of the following wave motions is transverse:
A. Wave motion produced in water when a piece of stone is thrown into it
B. Pulling of weight hanging vertically with a spiral spring
C. Both of these
D. None of these
3 For a body executing S. H. M, its
A. momentum remains constant
B. potential energy remains constant
C. kinetic energy remains constant
D. total energy remains constant
4 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
5 In a resonance situation the amplitude of the motion may become extra ordinarily large, if
A. the driving force is large
B. the driving force is zero
C. the driving force may be feeble
D. all of them
6 A second's pendulum is a pendulum whose time period is
A. 1 second
B. 2 seconds
C. 3 seconds
D. 4 seconds
7 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
8 If the time period a simple pendulum is 2 s, its frequency would be
A. 2 Hz
B. 1.5 Hz
C. 1.0 Hz
D. 0.5 Hz
9 Longitudinal waves are also called:
A. Congressional waves
B. Transverse waves
C. Radio waves
D. None of them
10 A simple pendulum consists of a
A. small light bob
B. small heavy bob
C. big light bob
D. big heavy bob

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