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In the diffraction pattern of a single slit

a)

All bands are uniformly bright

b)

All bands are uniformly wide

c)

Central band is narrower

d)

Central band is wider



Question ID - 150085 | SaraNextGen Top Answer

In the diffraction pattern of a single slit

a)

All bands are uniformly bright

b)

All bands are uniformly wide

c)

Central band is narrower

d)

Central band is wider

1 Answer
127 votes
Answer Key / Explanation : (d) -

(d)

In the diffraction due to narrow slit, the first minimum on either side on the central maximum in the direction  is given by

When slit is narrowed that is e is reduced, the angle  increases which means that the central maximum becomes wider.

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