Question # 1

Example of vibratory motion is

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mass suspended from a spring

a bob of simple pendulum

mass attached to a spring placed

all of them

The principle of superposition states that

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The total displacement due to several waves is the sum of the displacement due to those waves acting individually

Two stationary waves superimpose to give two progressive waves

A diffraction pattern consists of many interference patterns superimposed on one another

Two progressive waves superimpose to give a stationary wave

Which one of the following could be the frequency of ultraviolet radiation?

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1.0 x 10⁶Hz

1.0 x 10⁹Hz

1.0 x 10¹²Hz

1.0 x 10¹⁵Hz

When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:

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Longitudinal waves

Transverse waves

Water waves

Complex waves

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

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frequency of S.H.M

period of S.H.M

wave form

none of them

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

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P.E=Kx²_o

P.E= 1/2kx_o

P.E=1/2Kx²_o

P.E=Kx²_o

In the same medium, velocity of the wave:

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Goes on increasing

Remains constant

Goes on decreasing

None of these

A simple pendulum consists of a

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small light bob

small heavy bob

big light bob

big heavy bob

When a body moves to and fro motion, this type of motion is called

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translatory motion

circular motion

oscillatory motion

all of them

A string is stretched between two points and is plucked at right angles to its length, the vibration produced is:

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Longitudinal wave

Transverse wave

No vibration at all

None of them

A weakly damped system has fairly

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sharp resonance curve

flat resonance curve

both of them

none of them

Resonance occurs when one of the natural frequencies of vibration of the forced or driven harmonic oscillator

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greater than the frequency of applied force

equal to the frequency of applied force

less than the frequency of applied force

all of them

Associated with the motion of a driven harmonic oscillator, there is a very striking phenomenon, know as

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waves

beat

interference

resonance

Angular frequency 'w' is basically a characteristics of

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linear motion

circular motion

both of them

none of them

Energy is not carried by

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Transverse progressive waves

Longitudinal vibration

Stationary waves

Electromagnetic

The wave motion set up in any medium depends upon:

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Elasticity

Inertia

Density

All of these

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ECAT Physics Chapter 8 Waves Online Test MCQs With Answers

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