Out of the following pairs , choose the pairs in which the physical quantities do not have identical dimensions?
Answer & explanation
Correct answer: option 3
1. Dimension of Pressure and Young's Modulus is same as young's modulus dimension is same as that of Stress.
2. Planck's constant = p$\lambda$ = dimension of angular momentum
3. Impulse = Ft , Moment of force = F.r so dimension of Impulse and Moment of force are different.
4. F = $\frac{dP}{dt}$ so dimension of force is same as rate of change of momentum.