Question

Determine the maximum speed of the electrons ejected when a light of wavelength 386
nm is incident on a metal surface whose work function is 1.96 eV.
(a) 3.81x10 m/s
(b) 7.86x10 m/s
(c) 5.25x10 m/s
(d) 6.65 x10 m/s
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Answer 1

Find velocity from that equation