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प्रश्न
The Ionisation energy of hydrogen atom is 3.6 ev The ionisation energy of helium atom would be
पर्याय
13.6 ev
27.2 ev
6.0 ev
54.4 ev
MCQ
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उत्तर
54.4 ev
Explanation:
Iorusation energy = `(13.6Z^2)/n^2` ev ......(∵ For hydrogen Z = L and n = 1)
Iorusation energy = `(13.6 xx 2^2)/12` = 54.4 ev.
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