1.

(b)Loudness is determined by the-of vbration.(c) The unit of frequency ise) Shrillness of a sound is determined by thependulum oscillates 40 times in 4 seconds. Find its time period and(d)Unwanted sound is calledof vibration.

Answer» <p>b)amplitudec)Hertzd)noisee)pitch</p>


Discussion

No Comment Found