Atoms And Nuclei Question 416

Question: Hydrogen atoms are excited from ground state of the principal quantum number 4. Then the number of spectral lines observed will be

Options:

A) 3

B) 6

C) 5

D) 2

Show Answer

Answer:

Correct Answer: B

Solution:

  • Number of spectral lines $ N_{E}=\frac{n(n-1)}{2}=\frac{4(4-1)}{2}=6 $


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