Assertion: If white light is used in place of monochromatic light in YDSE, then central point is white, although at other places coloured fringes will be obtained.
Reason: At centre, path difference is zero for all wavelengths. Hence, all wavelengths will interfere constructively.
A. (a)If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.
B. (b)If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
C. (c) If Assertion is true, but the Reason is false.
D. (d) If Assertion is false, but the Reason is true.
