defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Physics Units, Dimensions and Measurements Dimensional formulae and dimensional equations
A force defined by F = αt2 + βt acts on a particle at a given time t. The factor which is dimensionless, if α and β are constants, is:
1
βt/α
2
αt/β
3
αβt
4
αβ/t