The ratio of the speed of the electrons in the ground state of hydroge – McqOptions

MCQOPTIONS

1.	The ratio of the speed of the electrons in the ground state of hydrogen to the speed of light in vacuum is [MNR 1994; MP PMT 1994]
A.	1/2
B.	2/137
C.	1/137
D.	1/237
Answer» D. 1/237

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