Choose the correctly labeled diagram of a solar cooker. What purposes are served by the blackened surface, glass cover plate, and mirror in a solar cooker? What would happen if the plane glass mirror of a solar cooker is replaced by a concave glass mirror?

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answer is A.

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Detailed Solution

Concept: The mirror, glass cover plate, and blackened surface are some of the parts that make up the solar cooker.
We shall now define the functions performed by the solar cooker's parts.
the tarnished surface A solar cooker's surface is painted black to increase the appliance's capacity to absorb heat. This will enable the food to cook more quickly.
Glass covering: This glass cover catches the sun's rays as they enter the solar cooker; that is, it prevents the sun's rays from evaporating.
The mirror directs or converges the sun's rays toward a fixed point, in this case the food that has to be heated. A greater quantity of heat is collected at a location where the rays are focused, aiding in the speedier cooking of the meal.
When a concave glass mirror is used in lieu of a solar cooker's plane glass mirror, the strength of the sun's rays is lessened.
These three will help the cooker to absorb more heat. This will help to make food fast , glass so that sunrays won’t affect the food and mirror to increase the heat rate.
Hence, the correct option is 1.

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