Explain briefly how the photoelectric effect is used in the operation of at least two of the following: an electric eye, photographer's light meter, the sound track of a motion picture.

OneClass: Explain briefly how the photoelectric effect is used in the operation of at least two of th...

We wish to use the photoelectric effect to convert light toelectrical power. A photoelectric effect test cell similar to theone shown on the right is constructed with A1 metal (work functionof Ï=4.0eV) for the photoelectric cathode. Monochromatic light ofwavelength 248nm and an intensity of 100mW cm^(-2) is used to testthis new type of solar cell. The light falls on an A1 photoelectriccathode of area 1cm^(-2).

1) Assuming every photon is converted to anelectron, how much electrical current flows in this device ?

We wish to use the photoelectric effect to convert light toelectrical power. A photoelectric effect test cell similar to theone shown on the right is constructed with A1 metal (work functionof Ï=4.0eV) for the photoelectric cathode. Monochromatic light ofwavelength 248nm and an intensity of 100mW cm^(-2) is used to testthis new type of solar cell. The light falls on an A1 photoelectriccathode of area 1cm^(-2).

There is 0.01999 amps of electrical current flow in thesystem

2) How much electrical power may be extracted from thisdevice?

We wish to use the photoelectric effect to convert light toelectrical power. A photoelectric effect test cell similar to theone shown on the right is constructed with A1 metal (work functionof Ï=4.0eV) for the photoelectric cathode. Monochromatic light ofwavelength 248nm and an intensity of 100mW cm^(-2) is used to testthis new type of solar cell. The light falls on an A1 photoelectriccathode of area 1cm^(-2).
ï»¿There is 0.01999 amps of electrical current flow in thesystem

There is 0.01999 amps of electrical current flow in thesystem

2) How much electrical power may be extracted from thisdevice?

Explain briefly how the photoelectric effect is used in the operation of at least two of the following: an electric eye, photographer's light meter, the sound track of a motion picture.

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