Question

write the importance point of dimension ?

Answer 1

★ Some important points of dimension are:-

●To check the correctness of a physical relation/formula.

●To convert the value of a physical quantity from one system to another.

●To derive relation between various physical quantities.

●To find the dimensions of dimensional constants.

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Answer 2

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HERE IS YOUR ANSWER :-

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Some important points about dimensions :-

✨ The dimension of physical quantity do not depend upon system of units to represent that physical quantity.

✨Pure numbers and pure ratio do not have any dimensions. i.e these are dimension less, e.g refractive index , relative density , cos. ¢, π , strain etc

✨ similar dimension can be added or subtracted but it does not change the dimensions.

✨For a physical equation to be correct dimensionally the dimension of all term on two sides of the equation must be same . this is known as the principle of homogeneity of dimensions.

✨ Logarithmic function as log X, e^x is the dimension less quality.

✨powers are dimension less .

✨The dimension of two physical quantities may be same but the quantities need not be similar.


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