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Name the type of mirror, used in the following situations :(i) Headlights of a car(ii) Rear-view mirror of vehicles(iii) Solar furnaceSupport your answer with reasons. |
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Answer» Type of mirror used in : (i) Headlights of a car: Concave mirror Concave mirror is used because light from the bulb placed at the focus of it gets reflected and produces a powerful parallel beam of light to illuminate the road. (ii) Rear view mirror of vehicles: Convex mirror Convex mirror is used because it always produces a virtual and erect image whose size is smaller than the object. Therefore, it enables the driver to see a wider field of view and traffic behind the vehicle in a small mirror. (iii) Solar furnace: Concave mirror Concave mirror has the property to concentrate the sunlight coming from sun along with heat radiation at its focus. As a result, the temperature at its focus increases and the substance placed at the focal point gets heated to a high temperature. |
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