A spherical air lens of radii R1=R2=10cm...

A spherical air lens of radii `R_1=R_2=10cm`
Is cut in a glass `(mu=1.5)` cylinder. Determine the focal length and nature of air lens. If a liquid of refractive index 2 is filled in the lens, what will happen to its focal length and nature?

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In the figure an air less of raddi of curvature 10 cm (R_1 = R_2 = 10 cm) is cut in a cylinder of glass (n = 1.5). The focal length and the nature of the lens is

A spherical air lens of radii `R_1=R_2=10cm` Is cut in a glass `(mu=1.5)` cylinder. Determine the focal length and nature of air lens. If a liquid of refractive index 2 is filled in the lens, what will happen to its focal length and nature?

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A spherical air lens of radii `R_1=R_2=10cm`
Is cut in a glass `(mu=1.5)` cylinder. Determine the focal length and nature of air lens. If a liquid of refractive index 2 is filled in the lens, what will happen to its focal length and nature?