Q11Written answer
Observe the figure A and B are given below and answer the following questions
I. The power generation by the above two methods is non-polluting True/False.
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Worked solution
Ans: True, the power generated by above two methods (solar energy and wind energy) is non-polluting as both these are natural sources of energy and do not release any pollutants.
Ii. List any two applications of solar energy.
Ans: Solar energy can be used to generate electricity on small as well as large scales.
Solar energy is also used in thermal power production.
Iii. What is a photovoltaic cell?
Ans: A photovoltaic cell is a semiconductor diode which is used for conversion of visible light rays into a direct current.