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Q.

The following graph is obtained when de-Broglie wave length (λ) on x - axis is plotted against1 Atomic number (Z) of given Bohr's atom. The correct relation is

 ( n= principal quantum number)

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a

n1> n2< n3

b

n1>n2>n3

c

n3>n2>n1

d

n1< n2 > n3

answer is C.

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Detailed Solution

λ=2πr(1,H)×1Z×n

y = mx is straight line with slope = 2πr(1,H)n

For same Z value slope increases with increase in "n" value

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