HSC Science (Computer Science) 12th Board ExamMaharashtra State Board

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Describe the Construction of Photoelectric Cell. - HSC Science (Computer Science) 12th Board Exam - Physics

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Describe the construction of photoelectric cell.


A photoelectric cell is device which converts light energy into electrical energy. It works on the principle of photoelectric effect.

Construction : A photoelectric cell consist a small evacuated bulb. A thin layer of an alkali metal is deposited on inner surface of the bulb. The bulb is made of quartz, if cell is used with ultraviolet light. If the cell is to be used with visible light only. the bulb is made of ordinary glass. A small portion of the surface of bulb is left uncoated and serves as a window for incoming light. The coated surface of the bulb acts as cathode. The anode is in shape of sphere.

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 2013-2014 (March) (with solutions)
Question 5.2 | 2.00 marks

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Solution Describe the Construction of Photoelectric Cell. Concept: Wave Nature of Matter.
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