Out of the following pairs , choose the pairs in which the physical quantities do not have identical dimensions? |
Pressure and Young's Modulus Planck's constant and Angular momentum Impulse and Moment of force Force and Rate of change of momentum |
Impulse and Moment of force |
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. |