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  4. Pulse rate of a normal person is 75 per minute. The time period of heart is

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Q. Pulse rate of a normal person is $ 75 $ per minute. The time period of heart is

AMUAMU 2012

Solution:

Time period of heart, $T = \frac{1}{\text{Frequency}}$
$ T = \frac{1}{75/60} = 0.8 \,s$