A convex lens is dipped in a liquid whose refractive index is equal to refractive index of lens material. Then its focal length will: - VgyanHub

Question:

A convex lens is dipped in a liquid whose refractive index is equal to refractive index of lens material. Then its focal length will:

Options :

(a) decrease
(b) become infinite
(c) become zero
(d) remain same

Answer :

(b) become infinite

Answer Steps :

step 1

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