Question

Difference in pattern of single slit nd double slit

Answer 1

Answer:

A single slit diffraction pattern results from diffraction at the edges of the slit, which creates a diffraction envelope at the target and generates destructive interference at the edges. Waves passing through the single slit are most likely to be in phase, and to augment one another, at the center of the slit. So the diffraction pattern is most intense at the center.

Double slit interference generates constructive interference. The two slits effectively become two coherent sources of light waves, which generate wave maxima and minima that can be in synch and can equally augment each other at multiple positions on the target, although the interference pattern will be modulated by a single-slit diffraction pattern.

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