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 sound waves travel from air to water which of these remains constant?

Question # 2

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

Question # 3

The phase determines the

Question # 4

Which of the following is the longitudinal waves?

Question # 5

Of the following, the option ______ reminds of longitudinal waves.

Question # 6

While describing the motion of a simple pendulum, the frictional effects are

Question # 7

In stationary waves

Question # 8

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

Question # 9

Transverse waves can be set up:

Question # 10

If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get

Question # 11

An object undergoes S.H.M has maximum speed when its displacement from the mean position is

Question # 12

The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as

Question # 13

When a wave is travels from one place to another, it transfers:

Question # 14

It two waves of amplitude 'a' produce a resultant wave of amplitude a, then the phase difference between them will be

Question # 15

When two waves with same frequency and constant phase difference phase difference interfere

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 When the bob of simple pendulum is at mean position, its K.E will be
A. maximum
B. minimum
C. zero
D. all of them
2 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
3 Which one of the following could be the frequency of ultraviolet radiation?
A. 1.0 x 106Hz
B. 1.0 x 109Hz
C. 1.0 x 1012Hz
D. 1.0 x 1015Hz
4 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
5 Shock absorber of the car is an example of
A. resonance
B. forced oscillations
C. interference
D. damped oscillations
6 The portion of the water above its mean level forms a:
A. Crest
B. Trough
C. Both A and B
D. None of these
7 The vibratory or oscillatory motion of a body is
A. translatory motion
B. back and forth motion about its mean position
C. free all motion
D. circular motion
8 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
9 If the mass of the simple pendulum becomes double, its time period
A. increase
B. decreases
C. remains constant
D. none of them
10 Si units of time period is
A. second
B. hertz
C. revolution
D. vibration/sec

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