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Mechanical Properties Of Fluids

Question
CBSEENPH11018476

Why do clouds seem floating in the sky?

Solution

Tiny droplets of water are contained in clouds. We kniow that terminal velocity acquired by a spherical body falling through a viscous media is directly proportional to the square of the radius of a body. 
So, very small drops falling in air under gravity have very small terminal velocity and remain in sky. Hence, clouds appear to be floating in the sky.