Which mirror is used as a torch reflector? Draw a labelled diagram to show how a torch reflector can be used to produce a parallel beam of light. Where is the bulb placed in relation to the torch reflector?

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Solution

A concave mirror is used as a torch reflector.

Light bulb placed at the focus of a torch reflector:
When a light bulb is placed at the focus of a concave mirror reflector, the diverging light rays of the bulb are collected by the reflector. These rays are then reflected to produce a strong, parallel-sided beam of light.

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Which kind of mirror is used a torch reflector? Draw a labelled diagram to show how a torch reflector can be used to produce a parallel beam of light. Where is the bulb placed in relation to the torch reflector?

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(a) a magnifying mirror
(b) a torch reflector
(c) a dentist's mirror
(d) a real view mirror

Q. In the concave reflector of a torch, the bulb is placed:

(a) between the pole and focus of reflector
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Question 12
In torches, search lights and headlights of vehicles the bulb is placed

(a) between the pole and the focus of the reflector
(b) very near to the focus of the reflector
(c) between the focus and centre of curvature of the reflector
(d) at the centre of curvature of the reflector

Which mirror is used as a street light reflector?

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