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Wien's Displacement Law

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Question

What is the role of a plane mirror and a glass sheet in a solar cooker?

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Solution

Plane mirror acts as a reflector
Glass sheet results in the greenhouse effect.
The sun rays pass through the glass sheet cover and get absorbed inside the cooker box. It traps more and more heat rays of the sun, thus heating the food item.

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What is the role of a plane mirror and a glass sheet in a solar cooker?

Q. (a)What is the role of a plane mirror and a glass sheet in a solar cooker.
(b) Why is energy of water flowing in a river considered to be an indirect form of solar energy ?
(c) Why is nuclear fusion reaction considered better.

Why is glass sheet used in a solar cooker?

Q. A solar cooker may not cook food if

(a) the solar cooker is not placed in the shade
(b) the glass sheet cover of solar cooker is not closed
(c) a convex mirror reflector is not used
(d) the food containers of insulting material are not used

Q. The part of box-type solar cooker which is responsible for producing greenhouse effect is :
(a) plane mirror reflector (b) black coating inside the box
(c) glass sheet cover (d) utensils placed in the cooker box

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