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 velocity of sound is greatest in

Question # 2

The loudness and pitch of a sound note depends on

Question # 3

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

Question # 4

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

Question # 5

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

Question # 6

When a mass 'm' is pulled slowly, the spring stretches by an amount xo, then the work done will be

Question # 7

Crests and troughs are formed in:

Question # 8

The wave form of S.H.M will be

Question # 9

The waves in which the particles of the medium have displacement along the direction of propagation of waves are called

Question # 10

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

Question # 11

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

Question # 12

The weight 'mg' of the bob is resolved into

Question # 13

The frequency of free vibrations is known as

Question # 14

When temperature increase, the frequency of a tuning fork

Question # 15

One complete round trip of the body about its mean position is called

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The process in which energy is dissipated from the oscillating system is known as
A. resonance
B. interference
C. diffraction
D. damping
2 Such oscillations in which the amplitude decreases steadily with time, are called
A. resonance
B. force oscillations
C. large oscillations
D. damped oscillations
3 The square of 0.4 is:
A. Greater than 0.4
B. Smaller than 0.4
C. Equal to 0.4
D. None of them
4 At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string of that instant is
A. Sinusoidal shape with amplitude A/3
B. Sinusoidal shape with amplitude A/2
C. Sinusoidal shape with amplitude A
D. Straight line
5 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
6 The waves in which the particles of the medium have displacement along the direction of propagation of waves are called
A. longitudinal waves
B. transverse waves
C. non-mechanical waves
D. none of them
7 In stationary waves
A. Energy is uniformly distributed
B. Energy is minimum at nodes and maximum at antinodes
C. Energy is maximum at nodes and minimum at antidotes
D. Alternating maximum and minimum energy producing at nodes and antinodes
8 Which type of wave can be set up in solids
A. longitudinal waves
B. transverse waves
C. both of them
D. none of them
9 Example of progressive wave is
A. transverse waves
B. longitudinal waves
C. both of them
D. none of them
10 In the same medium, velocity of the wave:
A. Goes on increasing
B. Remains constant
C. Goes on decreasing
D. None of these

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