Question

Conditions of diffraction is
(a) $\frac{a}{\lambda} =1$
(b) $\frac{a}{\lambda} \ \textgreater \ \ \textgreater \ 1$
(c) $\frac{a}{\lambda} \ \textless \ \ \textless \ 1$
(d) None of these

Answer 1

hey...

option C is correct answer i think ....

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