the value of cos 35 degrees+cos 85 degrees +cos 155 degrees is
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Name the various types of commonly used mirror.
↦The various types of commonly used mirrors are
Plane mirror - A plane mirror is a mirror with a flat reflective surface. For light rays striking a plane mirror, the angle of reflection equals the angle of incidence.
Spherical mirror -A curved mirror is a mirror with a curved reflecting surface. The surface may be either convex or concave
Concave mirror - A curved mirror is a mirror with a curved reflecting surface.
Convex mirror - A convex mirror or diverging mirror is a curved mirror in which the reflective surface bulges towards the light source. Convex mirrors reflect light outwards.
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