Q35 of 269 Page 141

In order to make an efficient solar cooker, the cover box should be made of :

As it do not allows the absorbed radiations to pass out hence, traping out more and more heat.

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The value of solar constant is

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The radiations present in sunlight which make a solar cooker work are

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If the solar constant is 1.4 kW/m2, then the solar energy received by 1 m2 area in one hour is :