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General Science ➤ Physics Set 1
Physics Set 1
Question 21
Q21.  Sound waves in air are
Question 22
Q22.  To an observer on the lunar surface, during daytime, the sky will appear to be
Question 23
Q23.  Which of the following quantities is the measure of 'inertia' ?
Question 24
Q24.  The intensity of a wave

(I) follows inverse square law.
(II) is proportional to its amplitude.
(III) is proportional to the square of the amplitude.

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