Photoelectric EffectHard

Question

Let An be the area enclosed by the nth orbit in a hydrogen atom. The graph of ln (An / A1) against In(n)

Options

A.will pass through the origin
B.will have certain points lying on a straight line with slope 4    
C.will be a monotonically increasing nonlinear curve
D.will be a circle

Solution

An = πr2 = p (r0 n2)2      
= πr02 n4               
ln = ln (n4) = 4 ln n.

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