JEE Main 7 Jan 2020 Shift 1 Solved Paper

Section: Physics
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Question : 2 of 75
 
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The time period of revolution of electron in its ground state orbit in a hydrogen atom is 1.6×1016 s. The frequency of revolution of the electron in its first excited state (in s1) is:
[7-Jan-2020 Shift 1]
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