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

When a mass 'm' is pulled slowly, the spring stretches by an amount x0,then the average force would be

Question # 2

When temperature increase, the frequency of a tuning fork

Question # 3

Which one of the following wave motions is transverse:

Question # 4

The weight 'mg' of the bob is resolved into

Question # 5

Which of the following is the longitudinal waves?

Question # 6

Which type of wave can be set up in solids

Question # 7

Acceleration of the mass at any instant is given by

Question # 8

The maximum displacement of a body on either side of its equilibrium position is called

Question # 9

If the mass of the simple pendulum becomes double, its time period

Question # 10

The vibratory motion of a body whose magnitude of acceleration is directly proportional to the magnitude of its displacement and is always directed towards the equilibrium position is called

Question # 11

Transverse waves can be set up:

Question # 12

Laplace formula is derived from

Question # 13

Such oscillations in which the amplitude decreases steadily with time, are called

Question # 14

For a body executing S. H. M, its

Question # 15

The velocity of sound is greatest in

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 Mechanical waves on the surface of a liquid are
A. Transverse
B. Longitudinal
C. Torsional
D. both transverse and longitudinal
2 At 'resonance' the transfer of energy from deriving source to the oscillator is
A. maximum
B. minimum
C. zero
D. none of them
3 The frequency of free vibrations is known as
A. free frequency
B. forced frequency
C. natural frequency
D. un-natural frequency
4 If the mass of the simple pendulum becomes double, its time period
A. increase
B. decreases
C. remains constant
D. none of them
5 While describing the motion of a simple pendulum, the frictional effects are
A. taken into account
B. completely ignored
C. partially ignored
D. none 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 In the resonance condition, the amplitude of the oscillator becomes
A. very large
B. very small
C. zero
D. any one of them
8 The natural frequency of a pendulum which is vibrating freely, depends upon its
A. mass
B. length
C. material
D. all of them
9 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
10 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

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