(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?
Answer:
(i) Figure A is solar energy panel
and figure B is wind mill 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 application of solar energy
(iii) A solar cell is also
called as photovoltaic cell. It is a form of photoelectric cell which converts
the light energy into electrical energy by photovoltaic cell.
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