Wavefronts Patterns for Mirrors , Lens and Prism - Param Himalaya
(a) Wavefronts Patterns for Concave mirror :
A plane wavefront is reflected as a converging wavefront from a concave mirror.
When a point source of light is at the focus of the concave mirror, then diverging spherical wavefronts fall on the concave mirror.
(b) Wavefronts Patterns for Prism :
A plane wavefront incident on a prism emerges out as a plane wavefront from the prism.
(c) Wavefronts Patterns for Convex lens :
A plane wavefront emerges out of a convex lens as a converging wavefront.
Let a point source of light be at the focus of a convex lens such that diverging spherical wavefronts fall on the convex lens. The refracted wavefront will be a plane wavefront.
(d) Wavefronts Patterns for Concave lens :
a concave lens takes a plane wavefront and transforms it into a diverging spherical wavefront.
(e) Wavefronts Patterns for Convex mirror :
A convex mirror takes a plane wavefront and reflects it as a diverging spherical wavefront.
