Atoms And Nuclei Question 115

Question: The ratio of the wavelengths for 2 ® 1 transition in Li++, He+ and H is [UPSEAT 2003]

Options:

A) 1 : 2 : 3

B) 1 : 4 : 9

C) 4 : 9 : 36

D) 3 : 2 : 1

Show Answer

Answer:

Correct Answer: C

Solution:

1λ=RZ2(1n121n22)λ1Z2 λLi++:λHe+:λH=4:9:36



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