Discussion :: Materials and Components
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In the wave mechanical theory, the maximum of the charge distribution in the ground state occurs for a distance from the nucleus equal to
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A.
first Bohr radius
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B.
second Bohr radius
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C.
third Bohr radius
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D.
either first or second Bohr radius
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Answer : Option A
Explanation :
The total charge associated with an electron moving about nucleus in the ground state of hydrogen atom is given by 
4p2rr(r)dr.
This integrand has a maximum value at r = radius of first Bohr orbit.
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