Question # 1

At mean position of pendulum, the potential energy of the pendulum is:

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Maximum

Minimum

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Both a and c

Astronauts is space need to communicate with each other by radio links because:

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Sound waves travel very slowly in space.

Sound waves travel very fast in speace

Sound waves cannot travel in space

Sound waves have low frequency in space

The speed of sound is air at 21 ^oC is:

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336 ms^-1

343 ms^-1

430 ms^-1

470 ms^-1

Pitch of sound depends upon:

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Frequency

Amplitude

Intensity

Time period

The loudness of sound is most closely related to its:

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Freqeucy

Period

Wavelength

Amplitude

Coaxial cable are used to transmit signals:

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Magnet

Electric

Mechanical

Both mechanical and magnet

The S.I unit of intensity of sound is:

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Wm

Wm2

Wm-2

Wm-1

The example of shock absorber of the vehicles are:

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Simple harmonic motion

Vibratory motion

Damped motion

Linear motion

The maximum displacement from mean position is called:

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Maximum height

Time period

Amplitude

Interval

The unit of intensity of sound:

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wm^-1

wm

wm^-2

wm^-3

The displacement produced in the spring is directly proportional to force is called:

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Hook’s law

Boyle’s law

Newton’s law

Joule’s law

1 MB =

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1022KB

1023KB

1024KB

1025KB

1 KB = :

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1024 bytes

1024 KB

1024MB

None of these

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Physics 10th Class English Medium Unit 2 Online Test MCQs With Answers

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