1.

Consider the Bohr’s model of a one-electron atom where the electron moves around the nucleus. In the following, List-I contains some quantities for the nth orbit of the atom and List-II contains options showing how they depend on n.List-lList-lI(I)  Radius of the nth orbit(P) ∝ n–2(II)  Angular momentum of the electron in the nth orbit(Q) ∝ n–1 (III)  Kinetic energy of the electron in the nth orbit(R) ∝ n0(IV) Potential energy of the electron in the nth orbit (S) ∝ n1(T) ∝  n2 (U) ∝ n1/2Which of the following options has the correct combination considering List-I and List-II?(A) (III), (P)  (B) (IV), (U)  (C) (III), (S)  (D) (IV), (Q) 

Answer»

Correct option (D) (I), (T)

Explanation:

In Bohr’s model

Radius ∝ n2

Angular momentum  n

Kinetic energy  ∝ 1/n2

Potential energy  ∝ 1/n2



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