Atoms And Nuclei Question 296

Question: Electrons are bombarded to excite hydrogen atoms and six spectral lines are observed. If $ E_{g} $ is the ground state energy of hydrogen, the minimum energy the bombarding electrons should posses is

Options:

A) $ \frac{8E_{g}}{9} $

B) $ \frac{15E_{g}}{16} $

C) $ \frac{35E_{g}}{36} $

D) $ \frac{48E_{g}}{49} $

Show Answer

Answer:

Correct Answer: B

Solution:

  • To obtain 6 spectral line, as electron must be excited to fourth orbit with energy $ \frac{E_{g}}{16}, $ so that the difference is $ \frac{15E_{g}}{16}, $


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