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Match the Column-I and Column-II.
Column-I Column-II
(A) J.J. Thomson (1) Nuclear model of the atom
(B) E. Rutherford (2) Plum pudding model of the atom
(C) Franck-Hertz (3) Explanation of the hydrogen spectrom
(D) Nills Bohr
(4) Existence of discrete energy levels in an atom
(a) (A) \( \rightarrow \) (4); (B) \( \rightarrow \) (1); (C) \( \rightarrow \) (3); (D) \( \rightarrow \) (2)
(b) (A) \( \rightarrow \) (4); (B) \( \rightarrow \) (1); (C) \( \rightarrow \) (2); (D) \( \rightarrow \) (3)
(c) (A) \( \rightarrow \) (2); (B) \( \rightarrow \) (1); (C) \( \rightarrow \) (4); (D) \( \rightarrow \) (3)
(d) (A) \( \rightarrow(3) ; \) (B) \( \rightarrow(2) ; \) (C) \( \rightarrow(4) ; \) (D) \( \rightarrow(3) \)
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