Question

 In torch lights the source of light is kept at which of the following positions with respect to a concave mirror.​

Answer 1

Answer:

In torches, the source of light is placed at the focus of the concave mirror to obtain a parallel beam of light. In projector lamps, the source of light is placed at the centre of curvature of the concave mirror. In floodlights, the source of light is placed just beyond the centre of curvature of the concave mirror.

Explanation:

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