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प्रश्न
Which kind of mirror is used in the headlights of a car? Why is it used for this purpose?
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उत्तर
A concave mirror is used in the headlights of a car. A light bulb placed at the focus of a concave mirror reflector produces a strong, parallel-sided beam of light. This is because the diverging light rays of the bulb are collected by the concave reflector and then reflected.
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