Question

A source and an observer are moving towards each other with a speed equal to v/2 where v is the speed of sound. The source is emitting sound of frequency n . The frequency heard by the observer will be

Answer 1

Answer:

3n is the correct answer

Explanation:

$na = n( \frac{v + \frac{v}{2} }{v - \frac{v}{2} } ) \\ \: = n \times 3$

Mark the answer brainliests please

Answer 2

The correct answer is 3n

Explanation:

I hope that will help you