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

Fluids can transmit:

Question # 2

Angular frequency 'w' is basically a characteristics of

Question # 3

The time period of pendulums of different lengths would be

Question # 4

The wave motion set up in any medium depends upon:

Question # 5

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

Question # 6

SI unit of wave length is:

Question # 7

When an oscillatory motion repeats itself, then this type of motion is called

Question # 8

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 # 9

The square of 0.4 is:

Question # 10

The number of vibrating body at any instant from its equilibrium position is called

Question # 11

The total energy of spring mass system is

Question # 12

The expression for restoring force is

Question # 13

The weight 'mg' of the bob is resolved into

Question # 14

transverse wave motion is possible in:

Question # 15

What is frequency of radio waves transmitted by a station, if the wavelength of those waves is 300 m?

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 The velocity of sound is greatest in
A. Water
B. Air
C. Vacuum
D. Metal
2 The expression for restoring force is
A. F=ma
B. F=kx
C. F= -kx
D. Kx=ma
3 Example of progressive wave is
A. transverse waves
B. longitudinal waves
C. both of them
D. none of them
4 The vibrations of factory floor caused by the running of heavy machinery is an example of
A. free vibration
B. natural vibrations
C. forced vibrations
D. all of them
5 If a freely oscillating system is subjected to an external force, then
A. free vibrations will take place
B. the body will move with its natural frequency
C. forced vibrations will take place
D. none of them
6 Waves transport energy
A. without transport energy
B. with matter
C. both of them
D. none of them
7 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
8 In a resonance situation the amplitude of the motion may become extra ordinarily large, if
A. the driving force is large
B. the driving force is zero
C. the driving force may be feeble
D. all of them
9 In compressional wave,the layer of medium having reduced pressure is called:
A. Compression
B. Elasticity
C. Node
D. Rarefaction
10 The damping depends upon the
A. amplitude
B. sharpness
C. both of them
D. none of them

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