define refraction by spherical mirrors?
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A spherical mirror is a mirror which has the shape of a piece cut out of a spherical surface. There are two types of spherical mirrors: concave, and convex. These are illustrated in Fig. 68. The most commonly occurring examples of concave mirrors are shaving mirrors and makeup mirror.
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A spherical mirror is a mirror which has the shape of a piece cut out of a spherical surface.
Refraction at Spherical Surface. There is an object O and a ray of light from the object O is incident on the spherical mirror. Since it is moving from a rarer medium to a denser medium, the ray bends towards the normal.
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