A Parallel Beam Of Light is on a concave mirror at height R/2 from axis as shown in fig. Here,R is Radius of curvature of mirror.After reflection it cuts the axis at A. The distance OA isFIGUREa concave mirror silvered on one side with O as optic centre R is the radius of curvature a light ray falls perpendicular on the mirror the reflected ray intersects R at a point A the height of incident ray from the axis is R/2

ramadugu anusha , 15 Years ago

Grade 12