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Q.

Is it true that concave mirrors are used in solar cookers?


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a

True

b

False  

answer is A.

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Detailed Solution

The above statement is True.
Concave mirrors are utilised in solar cookers because they reflect light to a single focal point. As a result, the concave mirror used in solar cookers collects all incident sunlight. It reflects it to a single focal point, where the radiation is particularly intense due to the concentration of heat energy. When we set a cooking pot on the focal point of the light, the energy is strong enough to cook food.
 
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