Q 12-10-021NEETJEE MainEasy
In single-slit diffraction, if the slit is made narrower, the central maximum
Answer: (B) becomes wider
Concept. Angular half-width of the central maximum $\approx \dfrac{\lambda}{a}$.
Step 1. Narrower slit. Smaller $a$, so a wider central maximum.
Answer. Becomes wider (Option B).
Solution by Sreeraj P, M.Sc Physics