Question

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

Answer 1

$Number\ of\ beats=75\\ time\ taken=1\ minute=60\ second \\ \\ frequency= \frac{Number\ of\ beats}{time\ taken}= \frac{75}{60}=\boxed{1.25\ Hz} \\ \\ time\ period = \frac{1}{frequency}= \frac{1}{1.25} =\boxed{0.8s}$