Question # 1

Waves transport energy without transporting

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Matter

Force

Momentum

All of these

Longitudinal waves do not exhibit

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Reflection

Refraction

Polarization

Diffraction

On loading the prong of a tuning fork with wax, the frequency of sound.

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Increases

Decreases

Remains same

First increases then decrease

A stretched string 2 m long and it has 2 hopes of stationary waves hen the wavelength is

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4 m

2 m

3 m

1 m

If the pressure of a gas is doubled, then speed of sound is.

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Doubled

Become half

Not affected

Increases by four times

The speed of sound increases with the increase of in

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Pressure

Volume

Temperature

Density

When the amplitude of a wave is increase to doubled is energy.

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Remain the same

Increases 4 times

Increases by two times

Decreases by half

When two identical travelling waves are superimposed, velocity of resultant wave.

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Decreases

Increases

Remain same

Becomes zero

Speed of sound in vacuum is

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280 ms-1

332 ms-1

333 ms-1

Zero ms-1

The mechanism of transports energy of all the waves is

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Different

Same

Complicated

Easy

A set of frequencies which are multiples of the fundamental frequency are called.

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Doppler effect

Nodal frequencies

Beat frequencies

Hamonics

The Newton's formula for the speed of sound in air is

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Diffraction is a special type of

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Reflection

Polarization

Interference

Refraction

If 332 waves pass through a medium in 1 second with speed of 332 ms-1 then wavelength will be

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7 m

332 m

664 m

1 m

The distance between the consecutive nodes is

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If 20 waves passes through he medium in 2 sec of 10 ms-1 then he wavelength is.

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200 m

2 m

1 m

0.5 m

The speed of sound is greater in solids due to their high.

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Density

Pressure

Temperature

Elasticity

The waves used in radar speed trap are

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Longitudinal

Sound wave

Micro waves

Matter waves

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Physics ICS Part 1 Chapter 8 Online Test MCQs With Answers

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