Photoelectric Cell and Its Applications

IMPORTANT

Photoelectric Cell and Its Applications: Overview

This topic covers concepts such as Photoelectric Cell, Construction and Working of Photoelectric Cell, Applications of Photoelectric Cell, Applications of Photoelectric Cell in Exposure Meter, and Types of Photoelectric Cells.

Important Questions on Photoelectric Cell and Its Applications

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When an inert gas is filled in place of vacuum in a photocell the photoelectric current?
 

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When an inert gas is filled in the place vacuum in a photo cell, then the photo-electric current is _____.

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When an inert gas is filled in the place vacuum in a photo cell, then Which one option is correct?

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Which of the following is the advantage of photovoltaic cell?

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A photovoltaic cell is made up of semiconductor materials which used to absorb the _____.

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The first practical application of photovoltaic was to power orbiting satellites and other spacecraft, but today the majority of photovoltaic modules are used for grid-connected systems for power generation.This statement is true or false?

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Gas-filled photocell for demonstrating the photoelectric effect and showing that the emission of electrons increases with increasing light intensity. 

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At what condition the Photoemissive cell will work?

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What is the advantage of gas-filled Photoemissive cell over vacuum Photoemissive cell?

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Explain the working of photo emissive cell. Write any two applications of photoelectric cells.

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The photoelectric cell is a device which converts light energy into electrical energy. The photo electric cells are of three types:

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Consider the following statements regarding the photoelectric effect experiment:

(I) Photoelectrons are emitted as soon as the metal is exposed to light.

(II) There is a minimum frequency below which no photo-current is observed.

(III) The stopping potential is proportional to the frequency of light.

(IV) The photo-current varies linearly with the intensity of the light.

Which of the above statements indicate that light consists of quanta (photons) with energy proportional to frequency?