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Q.

Which of the following is the efficiency of a modern solar cell?


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a

10 %

b

20 %

c

25 %

d

30 % 

answer is C.

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Detailed Solution

The efficiency of a modern solar cell is up to 25 %.
A solar cell, or photovoltaic cell, is an electronic device that transforms the energy of light directly into electricity by the photovoltaic effect. Solar cells are semiconductor devices which use sunlight to produce electricity. They are manufactured and processed similarly to computer memory chips. Solar cells are primarily made up of silicon that absorbs the sun's rays' photons. Solar cell efficiency measures how much of the sun's energy certain cells convert into usable electricity. Modern cells (solar cells) have an efficiency of up to 25 %.    Question Image 
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