A) \[{{f}_{1}}+{{f}_{2}}\]
B) \[\frac{R}{{{\mu }_{2}}-{{\mu }_{1}}}\]
C) \[{{f}_{1}}-{{f}_{2}}\]
D) \[\frac{2{{f}_{1}}{{f}_{2}}}{{{f}_{1}}+{{f}_{2}}}\]
Correct Answer: B
Solution :
[b] The focal length of the two lens is given |
So, the focal length of the lens combination is |
You need to login to perform this action.
You will be redirected in
3 sec