A certain metal when irradiated with light
(v = 3.2 * 1016 Hz) emits photo electrons with
twice kinetic energy as did photo electrons
when the same metal is irradiated by light
(v = 2.0 * 1016 Hz). Calculate vo of electron?
(1) 1.2 * 1014 Hz (2) 8 x 1015 Hz
(3) 1.2 x 1016 Hz (4) 4 x 1012 Hz
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