Atoms And Nuclei Question 93

Question: If R is the Rydberg’s constant for hydrogen the wave number of the first line in the Lyman series will be [KCET 2000]

Options:

A) R4

B) 3R4

C) R2

D) 2R

Show Answer

Answer:

Correct Answer: B

Solution:

For Lyman series ν¯=1λ=R,(1121n2) here n=2, 3, 4, 5….. For first line ν¯=R,(112122)ν¯=R,(114)=3R4



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