Assertion: In Young's double slit experiment using white light, the central fringe is white, the violet coloured fringe will be seen nearest to the central fringe.
Reason: Red coloured fringe will be seen near central fringe.

Options

A. (a) If both assertion and reason are true and reason is the correct explanation of assertion.
B. (b) If both assertion and reason are true but reason is not the correct explanation of assertion.
C. (c) If assertion is true but reason is false.
D. (d) If assertion and reason both are false.

Answer

C

Explanation

If a monochromatic light source is replaced by a white light source in Young's interference experiment, then the central fringe is white fringe and the fringe next to central fringe will be violet.