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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsRefraction at curved surface/LensMedium2 minPYQ_2021

PhysicsMediumsingle choice

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

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Solution:

For a lens $\frac{1}{f} = (μ^{'} - 1) (\frac{1}{R _{1}} - \frac{1}{R _{2}})$ Where $μ^{'} = \frac{μ _{g}}{μ _{ℓ}} = 1$ $∴ \frac{1}{f} = 0 or f = \infty$

Stream:MHT_CETSubject:PhysicsTopic:Geometrical OpticsSubtopic:Refraction at curved surface/Lens

⏱ 2mℹ️ Source: PYQ_2021

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