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Q.
Column I Column II
A Galileo Galilei 1 Explanation of photoelectric effect.
B JC Bose 2 Law of inertia.
C Albert Einstein 3 Discovery of Ultra short radio waves.
D JJ Thomson 4 Discovery of electron

Physical World, Units and Measurements

Solution:

Correct answer is (a) $( A ) \rightarrow(2) ; (B) \rightarrow(3) ; C \rightarrow(1); (D) \rightarrow (4)$

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