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MHT CET202014 Oct 2020Evening ShiftPhysicsAtomic PhysicsActual

Ratio of centripetal acceleration for an electron revolving in 3^ rd orbit to 5^ th Bohr orbit of hydrogen atom is

Options

  1. A424 21
  2. B625 81
  3. C125 4
  4. D775 61

Correct answer

B. 625 81

Step-by-step solution

Centripetal acceleration a = v ² r v 1 n and r n² a= 1 n⁴ a₅ a₃ = (3)⁴ (5)⁴ = 81 125

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