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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsRefraction at curved surface/LensMedium2 minQB

PhysicsMediumsingle choice

The diagram shows an equiconvex lens. What should be the condition on the refractive indices so that the lens becomes diverging?

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Answer:

Solution:

$\frac{1}{v} - \frac{1}{u} = \frac{μ _{3} - μ _{2}}{R} + \frac{μ _{2} - μ _{1}}{- R}$ . For diverging nature $v < 0$ , which gives $\frac{μ _{2} - μ _{3}}{R} + \frac{μ _{2} - μ _{1}}{R} < 0 \Rightarrow 2 μ_{2} < μ_{1} + μ_{3}$ .

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

⏱ 2mℹ️ Source: QB

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