Atoms And Nuclei Question 316

Question: The difference between the longest wavelength line of the Balmer series and shortest wavelength line of the Lyman series for a hydrogenic atom (atomic number Z) equal to Δλ . The value of the Rydberg constant for the given atom is :

Options:

A) 5311Δλ.Z2

B) 536Z2Δλ.

C) 3151Δλ.Z2

D) none of these

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Answer:

Correct Answer: C

Solution:

  • Δλ=λ1λ2 1R[1(2)21(3)2]Z2=1R[10]Z2 . On solving, R=3151Δλ.Z2


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