If first excitation potential of hydrogen – like atom is V electron volt, then the ionization energy of this atom will be

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V electron volt

3V/4 electron volt

4V/3 electron volt

cannot be calculated by given information

answer is C.

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Detailed Solution

First excitation energy =Rhc112−122=Rhc34∴34Rhc=V ev∴Rhc=43V ev

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