devarshi-dt-logo

Question:

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.

Solution:

(a) Time taken by an object to complete one oscillation is called the time period of oscillation (b) Loudness is determined by the amplitude of vibration (c) The unit of frequency is Hertz. SI unit of frequency is Hertz. Hertz=1/Second (d) Unwanted sound is called noise (e) Shrillness of a sound is determined by the frequency of vibration.