InterviewSolution
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InterviewSolution
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In torches, search lights and headlights of vehicles the bulb is placedA. between the pole and the focus of the reflectorB. very near to the focus of the reflectorC. between the focus and centre of curvature of the reflectorD. at the centre of curvature of the reflector |
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Answer» Correct Answer - B In torches, search lights and head lights of vehicles, the bulb is placed very close to the focus of the reflector, so that a parallel beam of light is obtained. |
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