A) \[75\mu m\]
B) \[100\mu m\]
C) \[25\mu m\]
D) \[50\mu m\]
Correct Answer: C
Solution :
\[a\,\,\sin \theta =\lambda \] \[\sin 30{}^\circ =\frac{\lambda }{a}\] \[(a=1\mu m)\] \[\Rightarrow \lambda =\frac{a}{2}=\frac{1}{2}\mu m\] \[\beta =\frac{\lambda D}{d}=1\times {{10}^{-2}}\] \[=\frac{\frac{1}{2}\times {{10}^{-6}}\times 50\times {{10}^{-2}}}{d}=1\times {{10}^{-2}}\] \[\Rightarrow d=25\mu m\]You need to login to perform this action.
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