Atoms And Nuclei Question 122

Question: Minimum energy required to takeout the only one electron from ground state of He+ is [CPMT 2002]

Options:

A) 13.6 eV

B) 54.4 eV

C) 27.2 eV

D) 6.8 eV

Show Answer

Answer:

Correct Answer: B

Solution:

En=13.6z2n2eVE1=13.6×(2)2(1)2=54.4 eV



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