The wavelength of the light used in Young's double slit experiment is `lamda`. The intensity at a point on the screen where the path difference is `(lamda)/(6)` is `I`. `I_(0)` mdenotes the maximum intensity then the ration of `I` and `I_(0)` is

Options

A. very few coloured fringes can be seen with first order red fringes being closer to the central white fringe
B. very few coloured fringes can be seen, with first order violet fringes can be seen, with first order violet fringes being closer to the central white fringe
C. a very larger number of coloured fringes with a central white fringe can be seen
D. a very large number of coloured fringes can be seen.

Answer

B

Explanation

White light produces a central white fringe with a few coloured fringes with the violet (because of smallest wavelength) being closest