what is the meaning of concave mirror
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Concave mirror is the piece of glass of large hollow glass sphere. It is painted with silver from bulging outside and coating is given for reflection. The inward cavity works as the reflecting part of the mirror.
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A concave mirror, or converging mirror, has a reflecting surface that is recessed inward (away from the incident light). Concave mirrors reflect light inward to one focal point. They are used to focus light.
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