Question

The heart of a man beats 75times a minute. Find its (i) Frequency (ii) Time period

Answer 1

(i)Frequency = No. of vibration/Time
= 75/1min
= 75 times/ 60 sec
= 1.25 Hz
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(ii) Time period = Time/no. of vibrations
= 1 min /75
= 60/75
= 0.8 seconds

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