Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsRefraction at curved surface/LensMedium2 minQB

PhysicsMediumsingle choice

A plano-concave lens is placed on paper on which a flower is drawn. How far above its actual position does the flower appear to an observer looking down from the top?

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Answer:

Solution:

Refraction from the single curved surface: $\frac{μ _{2}}{v} - \frac{μ _{1}}{u} = \frac{μ _{2} - μ _{1}}{R}$ applied at the curved surface (air film, $R = 20$ cm, $t = 20$ cm, $μ = 3/2$ ) gives the apparent position of the flower 10 cm above its actual position.

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

⏱ 2mℹ️ Source: QB

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