Question

on an average a human heart is found to beat 75 times in a minute.calculate it's beat frequency and period.

Answer 1

Frequency = 75/60
= 15/12
= 5/4 = 1.25 Hz
Time period = 60/75
= 12/15
= 4/5 = 0.8 s

Answer 2

Beat frequency and the period are mathematically connected with each other with a slight difference, because;

Beat frequency = Total beats/Total time

And;

Period= Total time/Total beats

[by applying the data mentioned in the question]

Beat frequency= 75÷60 = 1.25Hz (1min=60 sec)

Period = 60÷75= 0.8 sec

So the beat frequency is 1.25 Hz and the period is 0.8 sec (answer.)