Question : Which of the following is used in solar cookers?
Option 1: Electrical supply
Option 2: Solar plate
Option 3: Mirror
Option 4: Electrochemical cell
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Correct Answer: Mirror
Solution : The correct answer is Mirror .
In solar cookers, we use a concave type of mirror. Concave mirrors are used because they reflect the sunlight rays falling on them at a single focal point. At the focal point, when the cooking pot is placed, it produces enough heat and energy to cook that food.
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