Question

The frequency of a tuning fork is $384\text{Hz}$ and velocity of sound in air is $352{\text{ms}}^{-1}$. How far sound has travelled when fork completes 36 vibrations?

• A. $33\text{m}$
• B. $16.5\text{m}$
• C. $11\text{m}$
• D. $22\text{m}$

Answer 1

The correct option is A $33\text{m}$

The time taken by wave to travel = $\frac{36}{384}s$
So,
$x=v.t=352\times \frac{36}{384}=33\text{m}$