Answer:
Explanation:
wave length is distance between each crest so if wavelength be λ
λ = 2.10 m
frequency is no of waves passing a particular point per second .
If frequency be represented by n
n = 22 / 60 per second .
velocity of wave v = n x λ
= (22 / 60 ) x 2.1 m /s
= .77 m /s
= 77 cm /s .