1) In torches, search lights and headlights of vehicles the bulb is placed
A) between the pole and 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
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The mirror used as a torch reflector is concave mirror, because it converges the light and focus on a single direction. It is placed in the centre of the torch.
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Answer:
B)
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