Question

A wave has frequency of 3kHz and a wavelength 45cm. How long will it take to travel 1.8km

Answer 1

Answer:Velocity of wave = freq.× wavelength

So velocity of wave will be,

3000Hz × 0.45m = 1350 m/s

So time taken to travel 1.8km will be

1800/1350 = 1.3sec(approx.

I hope it helps you.☺

Explanation: