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Dimension Formula for Physical Quantities

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Dimensions Of Physical Quantities|Dimensional Formula|Dimensional Equation|Applications Of Dimensional Analysis|Practice Exercise|Summary

The SI unit of a physical quantity is [J m^(-2)] . The dimensinal formula for that quantity is

Knowledge Check

  • The dimensional formula of physical quantity is [M^(a)L^(b)T^(c)] .Then that physical quantity is

    A
    surface tension if a=1,b=1,c=-2
    B
    force if a=1,b=1,c=2
    C
    angular frequency if a=0,b=0,c=-1
    D
    spring constant if a=1,b=-1,c=-2

  • If the dimensional formula for the physical quantity is [M^(1)L^(2)T^(-2)] then the physical quantity is ______ .

    A
    torque
    B
    impulse
    C
    force
    D
    force per unit area

  • Dimensional formula of the physical quantity, resistance is

    A
    `[ML^2T^(-3)A^(-2)]`
    B
    `[ML^(-1)T^(3)A^(-1)]`
    C
    `[ML^(2)T^(-2)K^(-1)]`
    D
    `[ML^(-2)T^(-3)K^(2)]`

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