A) -1.66 D
B) +60 D
C) -60 D
D) \[\frac{1}{1.66}D\]
Correct Answer: A
Solution :
The focal length of the required concave lens is 60 cm. \[Power\,P=\frac{1}{f}=\frac{1}{-0.6}=-1.66\,D\]You need to login to perform this action.
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