A) \[100\mu m\]
B) \[300\mu m\]
C) \[1\mu m\]
D) \[30\mu m\]
Correct Answer: D
Solution :
\[2\theta =\frac{1.22\lambda }{d}\] \[2\theta =1.22\times 5\times {{10}^{-6}}\] \[d=R2\theta =\frac{1}{4}\times 1.22\times 5\times {{10}^{-6}}\] \[\cong 30\mu m\]
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