Question

An object is vibrating at $50$ hertz. What is its time period?

• A. $0.02$ s
• B. $0.2$ s
• C. $2$ s
• D. $20.0$ s

Answer 1

The correct option is A $0.02$ s

From the definition of frequency $\nu =\frac{1}{T}$

and we are given $\nu =50hertz$.

Substituting, we have $50=\frac{1}{T}$ or

$T=0.02s$