In the following list, the only pair which have different dimensions, is

(1) Linear momentum and moment of a force

(2) Planck's constant and angular momentum

(3) Pressure and modulus of elasticity

(4) Torque and potential energy

Concept Videos :-

#1 | Basic Concepts & Examples
#2 | Dimensional Analysis : Remaining

Concept Questions :-

Dimensions

(1) Linear momentum = Mass × Velocity = $\left[ML{T}^{-1}\right]$

Moment of a force = Force × Distance = $\left[M{L}^{2}{T}^{-2}\right]$

Difficulty Level:

• 61%
• 17%
• 13%
• 11%