Question # 1

The energy is transferred from one place of another:

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through matter

through waves

both a and b

through vacuum

1 MB =

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1022KB

1023KB

1024KB

1025KB

If there is no extension in the spring then the position is called:

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Equilibrium position

unequilibrium

neutral equilibrium

stable equilibrium

For normal person audible frequency range for sound wave lies between.

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10 Hz and 10KHz

20 Hz and 20KHz

25 Hz and 25KHz

30 Hz and 30KHz

the number of waves passing through a point in one second is called:

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time period

cycle

frequency

amplitude

1 GB =

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1022MB

1023 MB

1024MB

1025MB

To hear echoes, the minimum distance of the obstacle from source of sound should be:

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10 m

15 m

17 m

20 m

the waves have properties:

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reflection

refraction

diffraction

all of these

The unit of spring constant is:

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m

kg

Nm²

Nm^-1

How does sound travel from its source to your ear?

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Byc changes in air pressure

By vibration in wires or strings

By electromagnetic waves

By infrared waves

At extreme position potential energy of the pendulum is:

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Maximum

Minimum

Both a and b

Zero

The sound waves are the example of:

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Longitudinal waves

Transverse waves

Electromagnetic waves

x-rays

the time period of body attached to spring depend on:

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mass

gravitational constant

length

amplitude

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