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 ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be

Question # 2

Which of the following is the longitudinal waves?

Question # 3

The time required to complete on vibration is called

Question # 4

When a body is performing S.H.M., its acceleration is

Question # 5

Laplace formula is derived from

Question # 6

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

Question # 7

In solids, only following type/s of wave can travel:

Question # 8

The total energy of spring mass system is

Question # 9

If we increase the length of a simple pendulum four times, its time period will become

Question # 10

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

Question # 11

If the length of second pendulum becomes four times then its time period will become

Question # 12

There is no net transfer of energy by particle of medium in

Question # 13

Shock absorber of the car is an example of

Question # 14

The damping depends upon the

Question # 15

The distance covered by the wave during one period is called its:

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 If two waves of length 50 cm and 51 cm produced 12 beats per second, the velocity of sound is
A. 360 m/s
B. 306 m/s
C. 331 m/s
D. 340 ms
2 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
3 The waves which propagate out in space due to oscillation of electric and magnetic fields are known as
A. e.m. waves
B. mechanical waves
C. sound waves
D. water waves
4 In solids, only following type/s of wave can travel:
A. Transverse
B. Longitudinal
C. Both A and B
D. None of them
5 Longitudinal waves are also called:
A. Congressional waves
B. Transverse waves
C. Radio waves
D. None of them
6 Smaller the damping, the resonance will be
A. more flat
B. more sharp
C. both of them
D. none of them
7 If F=0.04 N and X=4 cm then K=
A. 1 Nm-1
B. 2 Nm-1
C. 3 Nm-1
D. 4 Nm-1
8 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
9 The example of mechanical wave is
A. waves in ropes
B. waves on water surface
C. waves in air
D. all of them
10 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

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