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CBSE Class 11-science Answered

want to know how to derive dimensional formula
Asked by | 09 Jul, 2009, 09:07: PM
answered-by-expert Expert Answer

Let's take an example:

if we want to find the dimensional formula of force, then taking

F = m a

Now putting dimensions of m and a in the above expression

[F] = [M] [LT-2] = [MLT-2]

Therefore to derive the dimensional formula of any physical quantity, take first the relation of that quantity and put the dimensions of the quantities comming in the expression.

Answered by | 10 Jul, 2009, 09:46: AM

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