The diagram below shows a ray of light striking a mirror AB. The mirror AB and the mirror CD are at right angles to each other. QN is the normal to the mirror AB. a) What is the angle of incidence of the ray PQ on the mirror AB? b) Continue the ray on the diagram to show the path it takes after reflection at both mirrors, indicating the values of all angles of incidence and reflection.
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.
The diagram below shows a ray of light striking a mirror AB. The mirror AB and the mirror CD are at right angles to each other. QN is the normal to the mirror AB.
a) What is the angle of incidence of the ray PQ on the mirror AB?
b) Continue the ray on the diagram to show the path it takes after reflection at both mirrors, indicating the values of all angles of incidence and reflection.
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