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Q.

The inner surface of the reflector of a torch acts as a ____ mirror.


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Detailed Solution

The inner surface of the reflector of a torch acts as a concave mirror.
The light coming from the torch, after reflecting from the inner surface, gets parallel and travels a long distance. When a ray of light coming from infinity strikes the surface of the mirror and then passes through the focus of the mirror then, this type of mirror is known as a concave mirror.
 
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