A light ray travelling parallel to the principal axis of a concave mirror strikes the mirror at angle of incidence θ. If radius of curvature is R
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A light ray travelling parallel to the principal axis of a concave mirror strikes the mirror at angle of incidence θ. If radius of curvature is R, then after reflection, the ray meets the principal axis at a distance d from the centre of curvature. Then d is A light ray travelling parallel to the [...]