Question

Time period (T) is related to frequency (f) as:

• A. $T=\frac{1}{f}$
• B. $T=f$
• C. $T\times f=0$
• D. $T\times f=v$
  where v: speed of sound wave

Answer 1

The correct option is A

$T=\frac{1}{f}$

Time period is the time taken for 1 complete oscillation. While frequency is the number of oscillations per second. So, frequency is the reciprocal of the time period.
$T=\frac{1}{f}$