Question

Dimensions formula and it's unit

Answer 1

Definition of a Dimensional Formula....

The formulae or expressions that indicate how and which fundamental quantities are there in a physical quantity are called as the Dimensional Formula of the Physical Quantity. Dimensional formulae are helpful in finding units from one system to another. They have numerous real-life applications and form the basic aspect of units and measurements.

Let’s assume that there is a physical quantity X that depends on base dimensions M (Mass), L (Length) and T (Time) with respective powers a, b and c, then its dimensional formula can be written as:

Answer 2

The formulae or expressions that indicate how and which fundamental quantities are there in a physical quantity are called as the Dimensional Formula of the Physical Quantity. Dimensional formulae are helpful in finding units from one system to another. They have numerous real-life applications and form the basic aspect of units and measurements.

Let’s assume that there is a physical quantity X that depends on base dimensions M (Mass), L (Length) and T (Time) with respective powers a, b and c, then its dimensional formula can be written as:

Note that a dimensional formula will always be closed in a square bracket [ ]. Also, when it comes to dimensional formulae of trigonometric, solid angle and plane angle, they cannot be defined as these are the types of quantities that are dimensionless in nature.