The physical quantity that has no dimensions is:

angular velocity

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linear momentum

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angular momentum

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strain

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Solution

The correct option is A strain
Angular velocity $= M^{0} L^{0} T^{- 1}$
Linear momentum $= m v$ $= M^{1} L^{1} T^{- 1}$
Angular momentum $= m v r =$ $M^{1} L^{2} T^{- 1}$
Strain $= \frac{Δ L}{L} = \frac{M^{0} L^{1} T^{0}}{M^{0} L^{1} T^{0}} = M^{0} L^{0} T^{0}$

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\frac{Q}{I}

Which of the following physical quantities has different dimensions?

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