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a convex spherical surface of radius of curvature +50mm separates air from glass of refractive index...

a convex spherical surface of radius of curvature +50mm separates air from glass of refractive index 1.6. a parallel pencil of ray in air is incidents on this surface. Find where the refracted pencil comes to a focus in the glass.

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Answer #1

We can find the distance from the surface to the focus of the pencil rays using lens makers formula ; which is described below :

from Lens makers Formula Refraction through Ist Surface : M2 - U 15t [ RI + Surface k given M2 = 1.6 and for ato M, = 1. and

There fore the refracted pencil of rays comes into focus at 133.33 mm from the pole of the spherical surface.

Thank you !!!

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