Question

14 3.
The equation of the progressive wave, where is the time in second, is the distance in meria
The phase difference (in si units) between two positions 0.6 m apart is
y = Acos 240/7
12
78
(1) 40
(2) 20
(3) 10
Donate​

Answer 1

Answer:

your answer is 10 it is easy to understand by bodmas