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Question

The wave function (Ψ) of 2s is given by:
Ψ2s=122π(1a0)12{2ra0}e(r/a0)
Where a0 is Bohr's radius. If the radial node in 2s is at r0, then find r0 in terms of a0.

A
a0
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B
2a0
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C
3(5)12a0
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D
None of these
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