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A student has set up a solar cooker in a...

A student has set up a solar cooker in a box using a black painted aluminium sheet, a black cooking vessel, some glass wool , a transparent glass sheet and a mirror plate. What is the role of black paint, transparent glass sheet and a mirror used in the solar cooker ?

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Black paint absorbs the heat energy quickly and thus helps in increasing the inner temperature. Glass sheet causes green-houses effect to retain the reflected infrared rays of heat, within the solar cooker. Mirror reflects the solar rays so that these rays reach inside the solar cooker.
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