1.

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 source are synchronized to have zero phase difference and the slits are separated by a distance d = 150.0 m. The intensity I(theta) is measured at a large distance as a function of theta, where theta is defined as shown. If I_(0) is the maximum intensity, the (theta) for 0 le theta le 90^(@) is given by

Answer»

`I(THETA) = I_(0)//2` for `theta = 30^(@)`
`I(theta) = I_(0)//4` for `theta = 90^(@)`
`I(theta) = I_(0)` for `theta = 0^(@)`
`I(theta)` is constant for all value of `theta`

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