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Question: Which of the following is dimensionally correct...

Which of the following is dimensionally correct

A

(a) Pressure = Energy per unit area

A

(b) Pressure = Energy per unit volume

A

(c) Pressure = Force per unit volume

A

(d) Pressure = Momentum per unit volume per unit time

Explanation

Solution

(b)

Sol. Pressure = Force Area=EnergyVolume\frac{\text{Force }}{\text{Area}} = \frac{\text{Energy}}{\text{Volume}}= ML−1T−2ML^{- 1}T^{- 2}