A) \[1.5\times {{10}^{7}}rad\]
B) \[~2.0\times {{10}^{7}}rad\]
C) \[3.0\times {{10}^{7}}rad\]
D) \[4.5\times {{10}^{7}}rad\]
Correct Answer: C
Solution :
Limit of resolution \[=\frac{1.22\lambda }{d}\] \[=\frac{1.22\times 600\times {{10}^{-9}}}{250\times {{10}^{-2}}}\]\[=2.9\times {{10}^{-7}}rad.\]
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