A) 50 m
B) 55 m
C) 51 m
D) 60 m
Correct Answer: B
Solution :
Resolving power\[=\frac{D}{1.22\lambda }\] Given, \[D=3.8\times {{10}^{5}}km=3.8\times {{10}^{8}}m\] \[\lambda =550\,nm=550\times {{10}^{9}}m\] \[\Rightarrow \] \[RP=\frac{3.8\times {{10}^{8}}}{1.22\times 550\times {{10}^{9}}}\approx 55\,m.\]You need to login to perform this action.
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