Statement-1 : The superposition of the waves `y_(1) = A sin(kx - omega t)` and `y_(2) = 3A sin (kx + omega t)` is a pure standing wave plus a travelling wave moving in the negative direction along X-axis
Statement-2 : The resultant of `y_(1)` & `y_(2)` is `y=y_(1) + y_(2) = 2A sin kx cos omega t + 2A sin (kx + omega t)`.

Options

A. Statement-1 is true, Statement-2 is true , Statement-2 is correct explanation for Statement-7
B. Statement-1 is true,Statement-2 is true , Statement-2 is NOT a correct explanation for Statement-7
C. Statement-1 is true, Statement-2 is false
D. Statement-1 is false, Statement-2 is true

Answer

A