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ChemistryChemistry
28 January, 20:40

Light from three different lasers (A, B, and C), each with a different wavelength, was shined onto the same metal surface. Laser A produced no photoelectrons. Lasers C and B both produced photoelectrons, but the photoelectrons produced by laser C had a greater velocity than those produced by laser B. Arrange the lasers in order of increasing wavelength.

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  1. 28 January, 20:44
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    When talking about the velocity of the photoelectrons, this pertains to frequency. The faster the speed, the higher the frequency. However, wavelength and frequency are inversely proportional. Thus, the arrangement is,

    Laser C < Laser B < Laser A
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