Question

A source of sound of frequency \(500\ \text{Hz}\) is moving towards an observer with velocity \(30\ \text{m/s}\). The speed of sound is \(330\ \text{m/s}\). The frequency heard by the observer will be

• A. \(450\ \text{Hz}\)
• B. \(550\ \text{Hz}\)
• C. \(600\ \text{Hz}\)
• D. \(500\ \text{Hz}\)

Hint:

When source moves towards observer, apparent frequency increases; use denominator \(v-v_s\).

Answer 1

The Correct Option is B