Q. In the following list, the only pair which have different dimensions, is
A) Linear momentum and moment of a force
B) Planck’s constant and angular momentum
C) Pressure and modulus of electricity
D) Torque and potential energy
Explanation
Linear momentum = $Mass\ \times Velocity = \lbrack{MLT}^{- 1}\rbrack$ Moment of a force = Force $\times Distance = \lbrack{ML}^{2}T^{- 2}\rbrack$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.