Physics - Unit & Dimension Question with Solution | TestHub

PhysicsUnit & DimensionMiscellaneousMedium2 minPYQ_2009

PhysicsMediumsingle choice

If the dimensions of a physical quantity are given by $M^{a} L^{b} T^{c}$ , then the physical quantity will beNEET 2009 (Screening)

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Answer:

Solution:

(i) Dimensions of velocity $= [M^{0} L^{1} T^{- 1}]$ Here, $a = 0, b = 1, c = - 1$ (ii) Dimensions of acceleration $= [M^{0} L^{1} T^{- 2}]$ Here, $a = 0, b = 1, c = - 2$ (iii) Dimensions of force $= [M^{1} L^{1} T^{- 2}]$ Here, $a = 1, b = 1, T = - 2$ (iv) Dimensions of pressure $= [M^{1} L^{- 1} T^{- 2}]$ $∴$ Here, $a = 1, b = - 1, c = - 2$ $∴$ The physical quantity is pressure.

Stream:NEETSubject:PhysicsTopic:Unit & DimensionSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2009

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