Question # 1

In transverse waves the particles of medium vibrate

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Along the direction of wave

Opposite to direction of wave

Perpendicular to direction of wave

Slowly

The wavelength of fundamental note in one end closed pipe in term of length 'l' of pipe is.

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4 l

2l

l

1/4 l

The distance covered by wave in 1 sec is

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wavelength

Wave number

Wave speed

Frequency

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 speed \velocity of sound is greatest in.

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Air

Steel

Ammonia

Water

Speed of sound in copper is

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38000 ms-1

3600 ms-1

3500 ms-1

3400 ms-1

In sonar we use

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Sound waves

Ultrasound waves

Microwaves

Radio waves

The periodic variations of sound between maximum and minimum loudness are called.

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Doppler's effect

reflection

Laplace correction

Beats

the louder the sound, the greater will be its.

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Speed

Frequency

Amplitude

Wave length

The experimental value for the velocity of sound in air is

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233 m-sec^-1

333 m-sec^-1

433 m-sec^-1

533 m-sec^-1

the wavelength of transverse wave travelling with a speed 'v' having frequency 'f' in equal to

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f/v

Vf

V/f

f/V2

In stationary waves, the velocity of particle at the node is.

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Maximum

Infinite

Zero

Varible

The speed of sound in air does not depend upon

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Temperature

Pressure

Density

Medium

If 30 waves per second pass through a medium at a speed 30 ms-1, then the wavelength is.

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30 m

15 m

1 m

28 m

The pitch of sound deepens upon

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Intensity of sound

Loudness of sound

Wavelength of sound

Frequency of sound

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

The speed of stars and galaxies can be calculated by

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Compton effect

Stefan's law

Doppler's effect

Pascal's law

Sound wave can not be

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Reflected

Refracted

Diffracted

Polarized

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11th Class Part 1 Physics Chapter 8 Test Online MCQs With Answers

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