(a) Name that part of a box-type solar cooler which allow the sun's heat rays to enter the box but does not allow inside heat to go out.
(b) Explain why, a plane mirror reflector is used in a box-type solar cooker.

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Solution

(a) A glass-sheet cover in a box-type solar cooker allows the sun's heat to enter the box but does not allow the heat inside to go out.
(b) A plane mirror reflects the sun's rays in the form of a strong beam of light. This property of a plane mirror is used in a box-type solar cooker.

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Q. The part of box-type solar cooker which is responsible for producing greenhouse effect is :
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(a) With the help of a labelled diagram, explain the construction and working of a solar cooker.
(b) Why is the solar cooker box painted black from inside ?
(c) Why is the solar cooker box covered with a glass sheet ?

Q. The energy which cooks food in a box type solar cooker is :

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(a) Name that part of a box-type solar cooler which allow the sun's heat rays to enter the box but does not allow inside heat to go out. (b) Explain why, a plane mirror reflector is used in a box-type solar cooker.

(a) A glass-sheet cover in a box-type solar cooker allows the sun's heat to enter the box but does not allow the heat inside to go out.(b) A plane mirror reflects the sun's rays in the form of a strong beam of light. This property of a plane mirror is used in a box-type solar cooker.

(a) Name that part of a box-type solar cooler which allow the sun's heat rays to enter the box but does not allow inside heat to go out.
(b) Explain why, a plane mirror reflector is used in a box-type solar cooker.

(a) A glass-sheet cover in a box-type solar cooker allows the sun's heat to enter the box but does not allow the heat inside to go out.
(b) A plane mirror reflects the sun's rays in the form of a strong beam of light. This property of a plane mirror is used in a box-type solar cooker.