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

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

Question # 2

For a body executing S. H. M, its

Question # 3

Mechanical waves on the surface of a liquid are

Question # 4

The waves produced in a microwave oven have frequency

Question # 5

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

Question # 6

At 'resonance' the transfer of energy from deriving source to the oscillator is

Question # 7

When the bob of simple pendulum is at mean position, its K.E will be

Question # 8

The example of mechanical wave is

Question # 9

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

Question # 10

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

Question # 11

Progressive waves of frequency 300 Hz are superimposed in produced a system of stationary waves in which adjacent nodes are 1.5 m apart. What is the speed of the progressive waves?

Question # 12

The restoring force always directed towards the

Question # 13

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

Question # 14

The bob of a simple pendulum is suspended by

Question # 15

If F=0.04 N and X=4 cm then K=

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 A traveling wave has a shape of:
A. Square wave
B. Sine wave
C. Parabola
D. hyperbola
2 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
3 The weight 'mg' of the bob is resolved into
A. one component
B. two components
C. three components
D. four components
4 The waves which propagate through the oscillations of material particles are known as:
A. Mechanical waves
B. Electromagnetic waves
C. Any of them
D. None of them
5 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
6 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
7 Longitudinal waves are also called:
A. Congressional waves
B. Transverse waves
C. Radio waves
D. None of them
8 Two sound waves of slightly different frequencies propagating in the same direction produce beats due to
A. Interference
B. Diffraction
C. Polarization
D. Refraction
9 If the length of second pendulum becomes four times then its time period will become
A. Four time
B. Two times
C. Six times
D. Eight times
10 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

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