Consider the spectral line resulting from the transition \[n=2\to n=1\ – McqOptions

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1.	Consider the spectral line resulting from the transition \[n=2\to n=1\] in the atoms and ions given below. The shortest wavelength is produced by
A.	Hydrogen atom
B.	Deuterium atom
C.	Singly ionized Helium
D.	Doubly ionized Lithium
Answer» E.

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