Question

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

• A. 0.8 s
• B. 0.75 s
• C. 1.25 s
• D. 1.75 s

Answer 1

Answer: (A)

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