In an interference arrangement similar to young's double slit experiment the slits `S_(1)` and `S_(2)` are illuminated with coherent microwave sources each of frequency `10^(6)Hz` the sources are synchronized to have zero phase difference. the slits are separated by a distance d=150.0m. The intensity `I(theta)` is measured as a funtion of `theta`, where `theta` is defined as shown. if `I_(0)` is the maximum intensity then `I(theta)` for `0lethetale90^(@)` is given by:

Options

A. `I(theta)=I_(0)//2" for "theta=30^(@)`
B. `I(theta)=I_(0)//4" for "theta=90^(@)`
C. `I(theta)=I_(0)" for "theta=0^(@)`
D. `I(theta)` is constant for all values of `theta`

Answer

A