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MHT CET20192 May 2019Morning ShiftPhysicsDual Nature of MatterActual

The maximum velocity of the photoelectron emitted by the metal surface is ‘ V ’. Charge and mass of the photoelectron is denoted by ‘ e ’ and ‘ m ’ respectively. The stopping potential in volt is

Options

  1. AV 2 2 m e
  2. BV 2 2 e m
  3. CV 2 e m
  4. DV 2 m e

Correct answer

B. V 2 2 e m

Step-by-step solution

e v o = K m a x e v o = 1 2 m v 2 ⇒ v o = m v 2 2 e

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