What is the unit of relative density?
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________________ refers to the superposing of two or more coherent waves to produce regions of maxima and minima in space, according to the principle of superposition.
Sewing machine was invented by
Which film was awarded the Best Film on Social Issues in the National Film Awards in 2017?
Madhuri Dixit is associated with which Indian Dance form?
____ are the most intelligent mammals on earth.
What is the duration (in minutes) of one-half of a football match?
The Asiatic Society was established in Calcutta by