A) Thrust
B) Pressure
C) Angle
D) Viscosity
Correct Answer: C
Solution :
The given equation of Bernoullis theorem is\[\rho +\frac{1}{2}\rho {{v}^{2}}=\rho gh=k3\]where \[\rho \] is pressure, \[\rho \] is density, \[g\]is gravity,\[h\] is height. We know that every equation relating physical quantities should be in dimensional balance. It means dimensions of terms on both sides must be same. Hence, \[k\] has same dimensions as \[\rho \] and \[\frac{k}{p}\] is dimensionless. Out of the given four options angle is a dimensionless quantity.
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