Question
Explain the refraction by two transparent spherically curved surface.
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Answer
→At infinitesimal part of a spherical surface can be regarded as planar and the same laws of refraction can be applied at every point on the surface.
→Just as for reflection by a spherical mirror, the normal at the point of incidence is perpendicular to the tangent plane to the spherical surface at that point and therefore, passes through its centre of curvature.
→Just as for reflection by a spherical mirror, the normal at the point of incidence is perpendicular to the tangent plane to the spherical surface at that point and therefore, passes through its centre of curvature.
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