Questions
A small sphere of radius ‘r’ falls from rest in a viscous liquid. As a result, heat is produced due to viscous force. The rate of production of heat when the sphere attains its terminal velocity, is proportional to
detailed solution
Correct option is D
Viscous drag FD = 6πηrVT Also VT r2Rate of production of heat (Q) = Power dissipated= FD.VT Q = 6πηr(VT)2 ⇒ Q r x (r2)2Talk to our academic expert!
Similar Questions
The terminal velocity of a small sized spherical body of radius r falling vertically in a viscous liquid is given by the following proportionality :
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