📝 Multiple Choice Question
General-science
A convex lens is dipped in a liquid whose refractive index is equal to that of the lens. The lens will act as:
A
a more powerful convex lens
B
a concave lens
C
a flat glass plate
D
a prism
Explanation
With no difference in refractive index, light doesn't bend upon entering the lens. Its focal length becomes infinite.
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