MCQ
Assertion : Interference pattern is made by using blue light instead of red light, the fringes becomes narrower.
Reason : In Young’s double slit experiment, fringe width is given by relation $B =\frac{\lambda D}{d}$.
Reason : In Young’s double slit experiment, fringe width is given by relation $B =\frac{\lambda D}{d}$.
- ✓If both assertion and reason are true and the reason is the correct explanation of the assertion.
- BIf both assertion and reason are true but reason is not the correct explanation of the assertion.
- CIf assertion is true but reason is false.
- DIf the assertion and reason both are false.