Q.48 Observe 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.
(ii) List any two applications of solar energy
(iii) What is a photovoltaic cell?
Ans. (i) Figure A is a solar energy panel and figure B is a windmill device. Both devices produce power without polluting the environment.
(ii) Solar lamp (lantern) (made up of a LED lamp, a photo-voltaic solar panel, and rechargeable battery) and solar hot water system (geyser) are the two applications of solar energy
(iii) A solar cell is also called a photovoltaic cell. It is a form of a photoelectric cell which converts the light energy into electrical energy by a photovoltaic cell.
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