On an average, a human heart is found to beat 75 times in a minute. Calculate its frequency and period.

Explanation

The beat frequency of heart `f= (75)/("min") = (75)/(60s)`
`= 1.25 s^(-1) = 1.25 Hz`
The time period `T= (1)/(f) = (1)/(1.25) = 0.8s`