Question
Fri March 02, 2012 By:
 

A siren has 16 notes and is making 960 revolutions per minute. The frequency produced by the siren is ?

Expert Reply
Sun March 04, 2012
Number of holes h = 16
Revolutions per minute = 960
Revolutions per second =960/60 =16
frequency = no. of holes x revolutions per sec
              = 16 x16 =256 Hz
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