Question # 1

Which have audible range for 2 kHz and 110 kHz.

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Human

Owl

Bat

Dolphin

An object produce a sound with a frequency of 50 Hz. Find its tiem period.

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0.01 sec

0.03 sec

0.02 sec

0.04 sec

Which of the following features of a wave is the number of waves that pass by each second.

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Loudness

Amplitude

Frequency

Wave speed

Sound cannot pass through.

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Solid

Liquid

Vacuum

Gasses

What is transferred by teh movement of waves.

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matter

energy

both a and b

None of these

Which of the following animals can respond to lowest frequency.

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Cat

Cow

Dog

Dolphin

Sound waves are not.

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Compressional waves

Transverse waves

Mechnical waves

Low frequency waves

The wavelength of red colour is.

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700 nm

800 nm

900 nm

600 nm

Speed of sound in water is

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1000 ms-1

1500 ms-1

900 ms-1

2000 ms-1

------------ waves are produced in stretched string.

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Longitudinal wave

Elecromagnetic wave

Transverse wave

None of these

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