Both a solar cooker and a greenhouse trap heat using a similar mechanism. Short-wavelength solar radiation (visible light) passes through a transparent cover (glass or plastic) and is absorbed by dark surfaces inside. These surfaces then re-emit energy as longer-wavelength infrared radiation. The transparent cover is largely opaque to this infrared radiation, trapping the heat inside. This is known as the greenhouse effect.
The solar cooker works on the same principle as
Asked in WBPSC CS Prelims 2021 · Topic: Heat and Thermodynamics (Modes of Heat Transfer (Conduction, Convection, Radiation))
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