Question

The SI unit of area is

• A. $c{m}^3$
• B. $c{m}^2$
• C. $m^2$
• D. $m/s$

Answer 1

The correct option is C

$m^2$

Explanation for the correct option:

C: ${\mathit{m}}^{\mathbf{2}}$

1. The area is the quantity that shows the amount of space occupied by a two-dimensional figure or shape or planar lamina, in the plane.
2. The SI unit of length is meter. Its symbol is $m^{}$.
3. Area is a derived quantity given by the equation,
   $Area=length\times breadth$.
4. Thus, the SI unit of area is
   $m\times m=m^2$.

Explanation for the incorrect option(s):

A: $\mathit{c}{\mathit{m}}^{\mathbf{3}}$

1. It is the CGS unit of volume.

B: $\mathit{c}{\mathit{m}}^{\mathbf{2}}$

1. It is the CGS unit of area.

D : $\mathit{m}\mathbf{/}\mathit{s}$

1. It is the SI unit of speed.

Hence, option (C) is correct.