Question

Q. A converging lens of refractive index 1.5 is kept in a liquid medium having same refractive index. What would be the focal length of the lens in this medium?

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Answer 1

Answer:

We have, Len's maker formula =f1=(μ1μ2−1)(R11−R21),

Here, μ1=μ2=1.5

⇒f1=0

⇒f=∞

its correct answer

Explanation:

I hope its help you

Answer 2

Answer:

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