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The photoelectric current in a photoelec...

The photoelectric current in a photoelectric cell can be reduced to zero by a stopping potential of 1.8 volt. Monochromatic light of wavelength `2200 overset(@)(A)` is incident on the cathode. Find the maximum kinetic energy of the photoelectrons in joules. [Charge on electron =`1.6 xx 10^-19 C`]

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