The molecular mass of a gas is ________
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Which term is not associated with sound wave?
A body of mass 18 kg is moving with a velocity of 6 m/s, find its momentum.
In the equation of motion v = u + at, u represents _________________
Find the power of a convex lens if the image formed is at a distance of 16 cm from the lens when the object is placed on the other side of the lens at 20 cm from the optical centre?
Ozone protects biosphere from ___________
Who discovered theory of relativity?
What is the SI unit of intensity of sound?