Question

Work out the wavelength of ultrasonic waves of frequency 106 Hz travelling at 1400 m/s.
wavelength=​

Answer 1

Answer:

Given, frequency(f) = 3×105Hz

Speed of sound in medium = 10×Vair

                                              =10×300 = 3000m/s

V =fλ

= fV

                       

= 3∗1053000

                       

 = 10−2

                     

 =100m=1cm