The equation of a stationary wave is given by
`y=6sin(pi)//(x)cos40pit` Where `y` and `x` are given in cm and time `t` in second. Then the amplitude of progressive wave is
A. `6cm`
B. `3cm`
C. `12cm`
D. `2cm`
`y=6sin(pi)//(x)cos40pit` Where `y` and `x` are given in cm and time `t` in second. Then the amplitude of progressive wave is
A. `6cm`
B. `3cm`
C. `12cm`
D. `2cm`
Correct Answer – B
`2A=6` or `A=3cm`