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

Ultra-violet rays differ from X-rays in that they

Question # 2

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

Question # 3

Which of the following is the longitudinal waves?

Question # 4

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

Question # 5

Which one is not produced by sound waves in air?

Question # 6

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

Question # 7

Time period of simple pendulum is independent of

Question # 8

When temperature increase, the frequency of a tuning fork

Question # 9

Example of vibratory motion is

Question # 10

The square of 0.4 is:

Question # 11

transverse wave motion is possible in:

Question # 12

The force which opposes the applied force producing the displacement in the spring is called

Question # 13

Angular frequency 'w' is basically a characteristics of

Question # 14

When a mass 'm' is pulled slowly through a distance 'xo' , the elastic potential energy of the spring would be

Question # 15

The temperature at which the speed of sound becomes double as was at 27°C is

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The expression for restoring force is
A. F=ma
B. F=kx
C. F= -kx
D. Kx=ma
2 The time required to complete on vibration is called
A. frequency
B. total time
C. time period
D. velocity
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 Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as
A. waves
B. beat
C. interference
D. resonance
5 If the length of a simple pendulum is 0.25 m its time period would be
A. 1.0 s
B. 2.0 s
C. 3.0 s
D. 4.0 s
6 Which type of wave can be set up in solids
A. longitudinal waves
B. transverse waves
C. both of them
D. none of them
7 With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are
A. Energy, momentum and mass
B. Energy
C. Energy and mass
D. Energy and linear momentum
8 If we increase the length of a simple pendulum four times, its time period will become
A. 2 times
B. 3 times
C. 4 times
D. 6 times
9 The maximum displacement of a body on either side of its equilibrium position is called
A. frequency
B. amplitude
C. displacement
D. time period
10 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

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