A) ? 40
B) ? 48
C) ? 60
D) ? 100
Correct Answer: B
Solution :
Magnifying power of astronomical telescope \[m=-\frac{{{f}_{o}}}{{{f}_{e}}}\left( 1+\frac{{{f}_{e}}}{D} \right)=-\frac{200}{5}\left( 1+\frac{5}{25} \right)=-\ 48\].You need to login to perform this action.
You will be redirected in
3 sec