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KVPY2011PhysicsAtomic Physics

Due to transitions among its first three energy levels, hydrogenic atom emits radiation at three discrete wavelengths ₁, ₂ , and ₃ ( ₁ < ₂ < ₃ ) . Then -

Options

  1. A₁= ₂+ ₃
  2. B₁+ ₂= ₃
  3. C1 / ₁+1 / ₂=1 / ₃
  4. D1 / ₁=1 / ₂+1 / ₃

Correct answer

D. 1 / ₁=1 / ₂+1 / ₃

Step-by-step solution

hc ₁ = hc ₂ + hc ₃ 1 ₁ = 1 ₂ + 1 ₃

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