If dimensions of critical velocity v c of a liquid flowing through a tube are expressed as 
, where η , ρ and r are the coefficient of viscosity of liquid, density of liquid and radius of the tube respectively, then the values of x, y and z are given by:
Text Solution
Verified by ExpertsThe correct answer is:
D
V C = η x ρ y r z
critical velocity is given by 
so, x = 1
y = –1
z = –1
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