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Class 12 • Physics • Chapter-12
Atoms & Nuclei
Question 180 of 680
180
Easy
JEE Mains
2022
The ratio for the speed of the electron in the 3 rd orbit of He + to the speed of the electron in the 3 rd orbit of hydrogen atom will be :
Choose the correct answer:
A
1 : 1
B
1 : 2
C
4 : 1
D
2 : 1
Select an answer first
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