Atoms And Nuclei Question 294

Question: Which of the following transitions in hydrogen atoms emit photons of highest frequency?

Options:

A) n=1 to n=2

B) n=2 to n=6

C) n=6 to n=2

D) n=2 to n=l

Show Answer

Answer:

Correct Answer: D

Solution:

  • Frequency is given by hv=−13.6(1n12+1n22)

    For transition from n=6 to n=2, v1=−13.6h(162−122)=29×(13.6h)

    For transition from n=2 to n=1, v2=−13.6h(122−112)=34×(13.6h).
    ∴v1>v2

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