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MHT CET202020 Oct 2020Evening ShiftPhysicsDual Nature of MatterActual

Two incident radiations having energies two times and ten times of the work function of a metal surface, produce photoelectric effect. The ratio of maximum velocities of emitted photo electrons respectively is

Options

  1. A3: 2
  2. B1: 3
  3. C2: 3
  4. D1: 2

Correct answer

B. 1: 3

Step-by-step solution

1 2 m v₁²=2 ₀- ₀ 1 2 m v₂²=10 ₀- ₀ v₁² v₂² = 1 9 v₁ v₂ = 1 3

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