Question

A standing wave set up in a medium is
TUX
y = 4cos
sin 40 nt where x, y are in cm and
3
tin sec. The velocity of medium particle at
4
x =
= 3cm at t= -s is (in cm/s)
8
1) 40π 2) 80π 3) 120π 4)160 π​

Answer 1

Answer:

1\2/3\4

Explanation:

choose the correct answer