Question

Fill in the blanks with suitable words.

1. Time taken by an object to complete one oscillation is called ___ .
2. Loudness is determined by the ___ of vibration.
3. The unit of frequency is ___.
4. Unwanted sound is called __________ .
5. Shrillness of a sound is determined by the ___ of vibration.

Answer 1

(a) Time taken by an object to complete one oscillation is called time period.
(b) Loudness is determined by the amplitude of vibration.
(c) The unit of frequency ishertz (Hz).
(d) Unwanted sound is called noise.
(e) Shrillness of a sound is determined by the frequency of vibration.