A) Thrust
B) Pressure
C) Angle
D) Viscosity
Correct Answer: C
Solution :
Key Idea: Only quantities possessing similar dimensions can be added. The given equation of Bernoulli's theorem is \[P+\frac{1}{2}\rho {{v}^{2}}+\rho gh=K\]where P is pressure, \[\rho \] is density, g is acceleration due to gravity and 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 P and so \[\frac{K}{P}\] is dimensionless. Out of the given four options angle is a dimensionless quantity.You need to login to perform this action.
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