Assertion: In Youngs double slit experiment interference pattern disappear when one of the slits is closed. Reason: Interference occurs due to superimposition of light waves from two coherent sources.

Question

Assertion: In Youngs double slit experiment interference pattern disappear when one of the slits is closed. Reason: Interference occurs due to superimposition of light waves from two coherent sources. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

When two light waves of exactly equal frequency having phase difference which is constant with respect to time travel in same direction and superimpose, then interference occurs. When one of the slits is closed, then illumination from a single source is obtained. Thus interference does not occur.

Q. Assertion : In Youngs double slit experiment interference pattern disappear when one of the slits is closed. Reason : Interference occurs due to superimposition of light waves from two coherent sources.

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

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

When two light waves of exactly equal frequency having phase difference which is constant with respect to time travel in same direction and superimpose, then interference occurs. When one of the slits is closed, then illumination from a single source is obtained. Thus interference does not occur.

Q. Assertion : In Youngs double slit experiment interference pattern disappear when one of the slits is closed.
Reason : Interference occurs due to superimposition of light waves from two coherent sources.