A certain sound wave in air has a speed 340 m/s and wavelength 1.7 m for this wave, calculate a) the frequency b) the period.

As per the given question we can list the data as

velocity v= 340m/s

wavelength λ = 1.7m 

To find a) frequency n = ?

             b) period T = ?

Solution -

velocity can be written as 

v = n x  λ 

n = v /  λ 

n = 340 / 1.7 = 200 Hz 

Also, 

Time Period T = 1/n 

T = 1/ 200 = 0.005 s