Which part of the solar cooker is responsible for greenhouse effect?

Coating with black color inside the box

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Mirror

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Glass sheet

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Outer cover of the solar cooker

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Solution

The correct option is C
Glass sheet

Glass allows virtually all the visible and ultraviolet solar radiation striking their surface to pass through, but absorb most of the infra-red radiation. So, the visible sunlight comes through and is directly absorbed by the pot and the air inside, but the thermal energy re-radiated by these does not pass directly outward through the glazing. To escape, it must heat the glazing, so that it radiates the energy outward. So, the warmth of the sun rays is trapped by the glass which leads to the greenhouse effect.

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Similar questions

Q. Question 9
Which part of the solar cooker is responsible for greenhouse effect?

(a) Coating with black colour inside the box
(b) Mirror
(c) Glass sheet
(d) Outer cover of the solar cooker

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Q. Two students made box-type solar cookers separately. They both painted the insulated box with black colour from inside, the cooking pots were painted black from outside, and a plane mirror reflector was also attached. One of the students covered the solar cooker box with a transparent glass sheet but the other student covered the solar cooker box with a transparent plastic sheet. Which of the two solar cookers will be more efficient and why?

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