Question

The frequency of a tuning fork is 384 per second and velocity of sound in air is 352 m/s. How far the sound has traversed while fork completes 48 vibration?

Options

• 3 m

• 13 m

• 23 m

• 44 m

Answer 1

44 m

Explanation:

`lambda = "v"/"n" = 352/384`; during 1 vibration of fork sound will travel `352/384`m

∴ during 48 vibration of fork sound will travel `352/384 xx 48 ` = 44 m