Question # 1

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

In stationary waves the points which always remain at rest are.

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Nodes

Antinodes

Crest

Trough

The profile of periodic waves generated by a source executing S.H.M is represented by a.

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Circle

Sine curve

Tangent curve

Cosine curve

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

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

10 waves pass through a point in 2 seconds with speed 10 ms-1 the frequency of wave will be

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1 Hz

2 Hz

5 Hz

10 Hz

Speed of sound in vacuum is

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280 ms-1

332 ms-1

333 ms-1

Zero ms-1

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

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Doppler's effect

reflection

Laplace correction

Beats

The speed of sound in air would become double than ots speed at 10^oC at a temperature of.

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313 ^oC

586 ^oC

859^oC

899 ^oC

The portion of the wave above mean level is called.

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Node

Antinode

Crest

Trough

The distance between two consecutive crest is called.

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Displacement

Amplitude

Wave front

Wavelength

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Physics English Medium Fsc Part 1 Chapter 8 Online MCQs Test MCQs With Answers

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