Diffraction: Practice Problem & Solution

Assertion (A): We cannot get diffraction pattern from a wide slit illuminated by monochromatic light. Reason (R): In diffraction pattern, all the bright bands are not of the same intensity.

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution Explained:

To solve this problem, we apply the core principles of Diffraction. Understanding the underlying formula is key to arriving at the correct answer below:

A diffraction pattern always exists, but for a very wide slit compared to wavelength, it's very narrow and practically unobservable, making (A) practically true. In single-slit diffraction, the central maximum is brightest, and other maxima are less intense, so (R) is true. (R) does not explain (A).

Diffraction: Practice Problem & Solution

Solution Explained:

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