Answer:

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Explanation:

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Answer:

Infinity (∞)

Explanation:

Given :

refractive index 1.5; kept in a liquid medium having same refractive index

To Find :

the focal length of the lens in this medium

Solution :

We know that, according to the extension of lens makers formula,

Where, f = Focal length of the lens in the medium

μl = refractive index of lens

μm = refractive index of medium

R₁ = Radius of first curvature

R₂ = Radius of second Curvature

Here, in this question it is mentioned that

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