If a monochromatic light source is replaced by a white light source in Young's interference experiment. Then, the colour of the fringe adjacent to central maxima will be:

Question

If a monochromatic light source is replaced by a white light source in Young's interference experiment. Then, the colour of the fringe adjacent to central maxima will be: (A) Red (B) Blue (C) Violet (D) Yellow

Tardigrade Admin · Accepted Answer

The colour of fringe adjacent to central maxima will be of violet colour but farthest will be of red colour. As fringe width (β = (λ D/d)) will be minimum for violet colour.

Q. If a monochromatic light source is replaced by a white light source in Young's interference experiment. Then, the colour of the fringe adjacent to central maxima will be:

Red

Blue

Violet

Yellow

The colour of fringe adjacent to central maxima will be of violet colour but farthest will be of red colour. As fringe width $(β = \frac{λ D}{d})$ will be minimum for violet colour.

Q. If a monochromatic light source is replaced by a white light source in Young's interference experiment. Then, the colour of the fringe adjacent to central maxima will be:

Red

Blue

Violet

Yellow

The colour of fringe adjacent to central maxima will be of violet colour but farthest will be of red colour. As fringe width (β=dλD​) will be minimum for violet colour.

The colour of fringe adjacent to central maxima will be of violet colour but farthest will be of red colour. As fringe width $(β = \frac{λ D}{d})$ will be minimum for violet colour.