Applications Of Reflection Of Light
When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.
Sign Convention for Mirrors
A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.
Two rays traveling parallel to the principal axis strike a
large plano - convex lens having a refractive index of 1.60
(Fig. P23.54). If the convex face is spherical, a ray near the
edge does not pass through the focal point (spherical aberration
occurs). Assume this face has a radius of curvature of
R = 20.0 cm and the two rays are at distances h1 =5 0.500 cm
and h2 = 12.0 cm from the principal axis. Find the difference
Dx in the positions where each crosses the principal axis.
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