Atoms And Nuclei Question 317

Question: A hydrogen atom is in ground state. Then to get six lines in emission spectrum, wavelength of incident radiation should be

Options:

A) 800Ao,

B) 825Ao,

C) 975Ao,

D) 01025Ao,

Show Answer

Answer:

Correct Answer: C

Solution:

  • Number of possible spectral lines emitted when an electron jumps back to ground state from nth orbit n(n1)2 Here, n(n1)2=6n=4 Wavelength λ from transition from n = 1 to n = 4 is given by, 1λ=R(11142)λ=1615R=975Ao,


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