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