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MHT CET202016 Oct 2020Morning ShiftPhysicsDual Nature of MatterActual

Energy of the incident photon on the metal surface is ' 3 ~W ' and then ' 5 ~W ', where 'W' is the work function for that metal. The ratio of velocities of emitted photoelectrons is

Options

  1. A1: 2
  2. B1: 1
  3. C1: 2
  4. D1: 4

Correct answer

A. 1: 2

Step-by-step solution

aligned & 1 2 m v₁²=3 W-W=2 W & 1 2 m v₂²=5 W-W=4 W & v₁² v₂² = 1 2 & v₁ v₂ = 1 2 aligned

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