A) A convex lens of focal length 0.5 m
B) A concave lens of focal length 0.5 m
C) A convex lens of focal length 2 m
D) A concave lens of focal length 2 m
Correct Answer: C
Solution :
\[P=\frac{1}{f}\Rightarrow f=\frac{1}{0.5}=2m\]You need to login to perform this action.
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