Q5 of 35 Page 9

A unit-less quantity

A unit-less quantity can never have a non-zero dimension but a dimensionless quantity can have a unit


for an example: radian

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3

Suppose a quantity x can be dimensionally represented in terms of M, L and T, that is, [x] = Ma Lb Tc . The quantity mass

 4

A dimensionless quantity

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The value of n is


 1

The dimensions ML-1 T-2 may correspond to