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Sound
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State True or false:
Sound cannot travel in vacuum.
In the following statements, tick ‘T’ against those which are true, and ‘F’ against those which are false :
State True or False:
If the amplitude of vibration is large, sound is feeble.
For human ears, the audible range is 20 Hz to 20,000 Hz.
State True or False:
The lower the frequency of vibration, the higher is the pitch.
State True or False:
Unwanted or unpleasant sound is termed as music.
State True or False:
Noise pollution may cause partial hearing impairment.
Time taken by an object to complete one oscillation is called __________.
Loudness is determined by the __________ of vibration.
The unit of frequency is ________.
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