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Assertion : In Young's double slit experiment, interference pattern disappears when one of the slits is closed. Reason : Interference occurs due to superposition of light waves from two coherent sources.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

A. If both assertion and reason are true and reason is the correct explanation of assertion.

Step-by-step solution

When one of the slits is closed, there appears general illumination from a single source. Interference does not take place.

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