Question

define demesions of physical quantity and state the use
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Answer 1

Answer:

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Answer 2

• In the physical quantity, the number of times the fundamental units of length, time, and mass appear is known as the dimensions of a physical quantity.

• The fundamental quantities are; time, temperature, length, mass, electric current, etc.

• The dimension is expressed in square brackets [].

• It is used to convert physical quantity value from one to another system.

• It is used to convert and interchange units. it is also used to check dimensional correctness.