Refraction of light at curved surfaces.....do you know?
How do you differentiate lens and spherical mirror?Differentiate focal length and Focus?
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Whether pole and optic centre denote same or different?Differentiate centre of curvature and Radius of curvature?Can you Identify different types of lenses?Differentiate beam and rayFactors effecting focal length of lensDraw converging beam and diverging beamWhat do you term the effective width of a lens through which refraction takes place?Write...
