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In a photoelectric-effect experiment, the stopping potentials was measured as 1.0 V for light of wavelength...

In a photoelectric-effect experiment, the stopping potentials was measured as 1.0 V for
light of wavelength 600 nm, 2.0 V for 400 nm, and 3.0 V for 300 nm. Determine the
work function for this material and the implied value of Planck’s constant h
(graphically)
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