Question

$1Pascal$ is equal to:

• A. $Nc{m}^{-2}$
• B. $N{m}^{-2}$
• C. $N{m}^2$
• D. $N{m}^{-1}$

Answer 1

The correct option is B

$N{m}^{-2}$

Explanation for correct answer:

1. From the definition of pressure, it is the force applied per unit area & in SI units it unit is pascal which is,

1Pascal = 1N/m2.

2. In other words, 1 Pascal as, when a force of $1N$ acts normally on an area of cross-section $1m^2$, then the pressure experienced by the surface is said to be $1Pascal\left(Pa\right)$ which is equal to $1N{m}^{-2}$.

Hence, the correct answer is option (B) i.e., $N{m}^{-2}$