1. Tardigrade
  2. Question
  3. Physics
  4. Assertion: Intensity pattern of interference and diffraction are not same. Reason: When there are few sources of light, then the result is usually called interference but if there is a large number of them, the word diffraction is more often used.

Q. Assertion : Intensity pattern of interference and diffraction are not same.
Reason : When there are few sources of light, then the result is usually called interference but if there is a large number of them, the word diffraction is more often used.

 1941  200 Wave Optics Report Error

Solution:

The intensity pattern of interference and diffraction are not the same.
In interference, Intensity remains constant, and intensity is decreasing in diffraction.
Interference:- It is a superposition of two waves starting from the two different wavefronts.
Diffraction:- It is a superposition of two waves starting from the different portions of the same wavefront.
Hence, Both assertions and reasons are true but the reason is not the correct explanation of assertion.