Question

The volume of a liquid is expressed in:
A) l
B) ${l^3}$
C) ${m^3}$
D) kg

Answer 1

At its most basic level, volume is simply a measure of space. When measuring the volume of a liquid, sometimes referred to as capacity, the unit liters (L) and milliliters (mL) are used.

Step by step solution:
Step 1:
Before we solve it is important to analyze the basic fundamental quantities and their dimensions. They are further classified into various ranges and bring out more dimensions together of different quantities.

Basic quantity	Symbol of dimensions
Length	[L]
Mass	[M]
Time	[T]
Electric current	[I]
Temperature	[K]
Luminous intensity	[J]
liter	[L]

Step 2:
So according to the table we can say that we can’t use option C and D.
A and B both are liters but we can’t use option B because fundamentally to measure. We normally use liter unit L to measure.
But ${L^3}$ can also be used when we are asked to tell the volume of the body having liquid filled in it

Hence option A is correct.

Additional information:
The kilogram is the base unit of mass in the International System of Units (SI), the current metric system, having the unit symbol kg. It is a widely used measure in science, engineering and commerce worldwide, and is often simply called a kilo in everyday speech.
A meter is a standard metric unit that is used to measure length. This means that a meter is part of the metric system of measurement.

NOTE:
Some of the quantities are in physics that are dimensionless and some which are derived quantities. Dimensionless quantities like Avogadro’s number, dozen etc. because they are not related to any physical dimension and are obtained by products or ratios of quantities.