Atoms And Nuclei Question 84

Question: The energy required to excite an electron from the ground state of hydrogen atom to the first excited state, is [Pb. PMT 1999]

Options:

A) 1.602×1014,J

B) 1.619×1016,J

C) 1.632×1018J

D) 1.656×1020J

Show Answer

Answer:

Correct Answer: C

Solution:

Energy to excite the e from n=1 to n=2 E=3.4(13.6)=10.2,eV=10.2×1.6×1019 =1.632×1018,J



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