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Who modified Bohr’s theory by introducing elliptical orbits for electron path

Who modified Bohr’s theory by introducing elliptical orbits for electron path

Options

(a) Rutherford
(b) Thomson
(c) Hund
(d) Sommerfeld

Correct Answer:

Sommerfeld

Explanation:

Sommerfeld modified Bohr’s theory considering that in addition to circular orbits electrons also move in elliptical orbits.

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