Sounds from two identical sources `S_(1)` and `S_(2)` reach a point `P`. When the sounds reach directly, and in the same phase, the intensity at `P` is `I_(0)`. The power of `S_(1)` is now reduced by `64%` and the phase difference between `S_(1)` and `S_(2)` is varied continuously. The maximum and minimum intensities recorded at `P` are now `I_("max")` and `I_("min")`

Options

A. `l_("max") =0.64l_0`
B. `l_("min")=0.36 l_0`
C. `I_("max")//I_("min")=16`
D. `I_("max")//I_("min")=1.64//0.36`

Answer

A, C