Solar cooker takes more time as compared to the LPG to boil potato or rice, yet kunal uses solar cooker for such type of cooking:
a) Why does kunal use solar cooker instead of LPG? Give reason for your answer.
b) Name the phenomenon which is responsible for obtaining high temp in solar cooker?
c) what is the motivation behind using solar cooker

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Solution

a. In solar cooker solar energy is used, which is renewable source of energy. Whereas LPG is a non renewable source of energy.
b. Black body radiation and green house effect are the phenomenon used for obtaining high temperature.
c. Non conservation of energy is the concept behind using solar cooker.

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