Fill in the blanks with suitable words.
(a) Time taken by an object to complete one oscillation is called …………
(b) Loudness is determined by the ………….. of vibration.
(c) The unit of frequency is ……………
(d) Unwanted sound is called …………….
(e) Shrillness of a sound is determined by the …………….. of vibration.
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Answer:
1 frequency
2 amplitude
3 Hertz
4 noise
5 pitch
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