CBSE - X - Physics
explain me function of solar cooker?types of mirrors use.
Solar cooker: It consists of a rectangular metallic, double-walled box. A thermal-insulating material such as glass wool is filled between the two walls of the box in which the inner surface of the wall is painted black and has a glass or plastic cover at the top.
The sunlight is reflected from a plane mirror where the food to be cooked is kept in the shallow vessels. The black surface of the vessel absorbs 98% of the incident heat radiation.
A concave mirror can also be used in a solar cooker because it reflects and focuses the sunlight at a point. and the temperature at that point increases which heats and cooks the food placed at that point.
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