The potential potential of a photoelectric diode is 8 volts. e/m = 1.8 x 10¹¹ C kg ¹, then what is its velocity? (a) 1.8 × 106 m/s (c) 2.1 x 105 m/s stopping stopping (b) 1.8 x 105 m/s (d) 1.8 x 10¹ m/s
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