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MHT CET202121 Sep 2021Evening ShiftPhysicsAtomic PhysicsActual

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

Options

  1. A425: 18
  2. B625: 81
  3. C125: 27
  4. D221: 36

Correct answer

B. 625: 81

Step-by-step solution

Centripetal acceleration a = v ^2 r For hydrogen atoms, v 1 n and r n ^2 aligned & a 1 n ^4 & a ₃ a ₅ = ( 5 3 )^4= 625 81 aligned

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