A) \[\frac{3}{4}D\]
B) \[7D\]
C) \[\frac{4}{3}D\]
D) \[1D\]
Correct Answer: D
Solution :
Here: Power of convex lens = 4D Power of concave lens = 3D Hence, die equivalent power of the combination = 4D - 3D = 1D (\[\because \]Concave lens has negative (minus) focal length, so its power will also be negative.)You need to login to perform this action.
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