Question

what will be time period of a vibrating source if wavelength is 4m and velocity of sound is 340m/s?

Answer 1

I don't know

Explanation:

Answer 2

given,

the wavelength (w)= 4m

velocity (v)= 340 m/s

from the relation,

v= f× w,

f= v/w= 340/4= 85 Hz

thus,

t= 1/f = 1/85= 0.01 s