Atoms And Nuclei Question 140

Question: An electron changes its position from orbit n=4 to the orbit n=2 of an atom. The wavelength of the emitted radiation’s is (R = Rydberg’s constant) [BHU 2004]

Options:

A) 16R

B) 163R

C) 165R

D) 167R

Show Answer

Answer:

Correct Answer: B

Solution:

1λ=R[1n121n22]=R[1(2)21(4)2]
Þ λ=163R



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