A) \[10\,cm\]
B) \[15\,cm\]
C) \[20\,cm\]
D) \[5\,cm\]
Correct Answer: C
Solution :
The silvered piano convex lens behaves as a concave mirror; whose focal length is given by \[\frac{1}{F}=\frac{2}{{{f}_{1}}}+\frac{1}{{{f}_{m}}}\]You need to login to perform this action.
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