Physics

Problem

A student prepares the following table of dimensional formulae but one entry is wrong. Quantity — Dimensional formula reported (i) Pressure :

[M L^{-1} T^{-2}]

(ii) Momentum :

[M L T^{-1}]

(iii) Work :

[M L T^{-2}]

(iv) Power :

[M L^{2} T^{-3}]

Which entry is incorrect? a) (ii) b) (iv) c) (iii) d) (i)