A) \[{{10}^{6}}rad\]
B) \[{{10}^{-2}}rad\]
C) \[{{10}^{-4}}rad\]
D) \[{{10}^{-6}}rad\]
Correct Answer: D
Solution :
Angular resolution \[=\frac{1.22\lambda }{d}\] \[=\frac{1.22\times 5000\times {{10}^{-10}}}{10\times {{10}^{-2}}}\] \[=6.1\times {{10}^{-6}}\approx {{10}^{-6}}\,rad\] Aliter: Angular resolution \[d\theta =\frac{1.22\lambda }{a}\] \[=\frac{1.22\times 5000\times 10\times {{10}^{-10}}}{10\times {{10}^{-2}}}=6.1\times {{10}^{-6}}\,rad\]
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