Question

Statement A: The product of time period and the frequency of a sound wave is always 1.
Statement B: Time period is expressed in the units of seconds.
Which of the statement is correct?

• A. Statement A only
• B. Statement B only
• C. Both statments A and B
• D. Neither statement A nor B

Answer 1

The correct option is C Both statments A and B

Time period is equal to the inverse of frequency.
$\text{Time period}=\frac{1}{\text{Frequency}}$
$\text{Time period}\times \text{Frequency}=1$

Time period is the time taken by a wave to complete one oscillation. Hence, it is expressed in seconds.