Question

Find the distance travelled by a sound wave of frequency 20 kg hertz wavelength 1.7 cm in 10 second

Answer 1

Answer:

3400m

Explanation:

given= 20kHz=20000Hz

wavelength= 1.7cm=0.017m

v= f × wavelength

v= 20000×0.017

v=340m/s

v=d/t

340=d/10. (time=10sec)

therefore,d= 3400m