A) \[305\text{ }\times \text{ }10-9\text{ }radian\]
B) \[152.5\text{ }\times \text{ }10-9\text{ }radian\]
C) \[610\text{ }\times \text{ }10-9\text{ }radian\]
D) \[457.5\text{ }\times \text{ }10-9\text{ }radian\]
Correct Answer: A
Solution :
Limit of resolution of telescope \[=\frac{1.22\lambda }{D}\] \[\theta =\frac{1.22\times 500\times {{10}^{-9}}}{200\times {{10}^{-2}}}=305\times {{10}^{-9}}\] radian
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