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 a resonance situation the amplitude of the motion may become extra ordinarily large, if

Question # 2

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

Question # 3

In the formula for finding the speed of waves in the spring, unit of m in SIn units is:

Question # 4

Example of vibratory motion is

Question # 5

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

Question # 6

Which of the following is the longitudinal waves?

Question # 7

Angular frequency 'w' is basically a characteristics of

Question # 8

The waves which propagate through the oscillations of material particles are known as:

Question # 9

When two progressive waves of nearly same frequencies superimpose and give rise to beats, then

Question # 10

Example of progressive wave is

Question # 11

The speed of sound in a medium depends on

Question # 12

Which one of the following is an example of resonance

Question # 13

The time required to complete on vibration is called

Question # 14

Fluids can transmit:

Question # 15

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

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ECAT Physics Chapter 8 Important MCQ's

Sr.# Question Answer
1 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?
A. 100 ms-1
B. 200 ms-1
C. 450 ms-1
D. 900 ms-1
2 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
3 SI unit of wave length is:
A. Kilometer
B. Metre
C. Centimetre
D. Hertz
4 The wave form of S.H.M will be
A. square wave
B. sine wave
C. rectified wave
D. saw-tooth wave
5 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
6 The frequency of free vibrations is known as
A. free frequency
B. forced frequency
C. natural frequency
D. un-natural frequency
7 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
8 Through which character we can distinguish the light waves from sound waves
A. Interference
B. Refraction
C. Polarization
D. Reflection
9 Which one of the following wave motions is transverse:
A. Wave motion produced in water when a piece of stone is thrown into it
B. Pulling of weight hanging vertically with a spiral spring
C. Both of these
D. None of these
10 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

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