Questions

The energy required to excite an electron from the ground state of hydrogen atom to the first excited state, is

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1.602×10−14J

1.69×10−16J

1.632×10−18J

1.656×10−20J

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detailed solution

Correct option is C

Energy to excite the e−from n=1 to n=2E=−3.4−(−13.6)=10.2eV=10.2×1.6×10−19 =1.632×10−18J

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