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MHT CET20242 May 2024Morning ShiftPhysicsAtomic PhysicsActual

The radius of innermost orbit of hydrogen atom is 5.3 10⁻¹¹ ~m . The radius of fourth allowed orbit of hydrogen atom is

Options

  1. A8.48 Å
  2. B2 12 Å
  3. C4.77 Å
  4. D0.53 Å

Correct answer

A. 8.48 Å

Step-by-step solution

array ll & r_n n^2 & r_n r₀ = ( n 1 )^2=(4)^2=16 & r₄=16 (5.3 10⁻¹¹ )=8.48 Å array

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