Question

Two slits in Young's interference experiment have width in the ratio 1 : 2. The ratio of intensity at the maxima and minima in their interference is ______.

Options

• `1/9`

• `1/4`

• `9/1`

• `9/4`

Answer 1

Two slits in Young's interference experiment have width in the ratio 1 : 2. The ratio of intensity at the maxima and minima in their interference is `underline(9/1)`.

Explanation:

Width proportional to amplitude (A) and

`("I"_"maxima")/("I"_"minima") = (2 + 1)^2/(2 - 1)^2 = 9/1`