1.

    The dimensional formula for entropy is

    A

    [MLT2K1]\left[ {{\rm{ML}}{{\rm{T}}^{ - 2}}{{\rm{K}}^{ - 1}}} \right]

    B

    [ML2T2]\left[ {{\rm{M}}{{\rm{L}}^2}{{\rm{T}}^{ - 2}}} \right]

    C

    [ML2T2K1]\left[ {{\rm{M}}{{\rm{L}}^2}{{\rm{T}}^{ - 2}}{{\rm{K}}^{ - 1}}} \right]

    D

    [ML2T2K1]\left[ {M{L^{ - 2}}{T^{ - 2}}{K^{ - 1}}} \right]

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    2.

    Dimensional formula of Stefan’s constant is

    A

    MT3K4M{T^{ - 3}}{K^{ - 4}}

    B

    ML2T2K4M{L^2}{T^{ - 2}}{K^{ - 4}}

    C

    ML2T2M{L^2}{T^{ - 2}}

    D

    MT2L0M{T^{ - 2}}{L^0}

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    6.

    The dimensions of emf in MKS is

    A

    [ML1T2Q2]\left[ {{\rm{M}}{{\rm{L}}^{ - 1}}{{\rm{T}}^{ - 2}}{{\rm{Q}}^{ - 2}}} \right]

    B

    [ML2T2Q2]\left[ {{\rm{M}}{{\rm{L}}^{ - 2}}{{\rm{T}}^{ - 2}}{{\rm{Q}}^{ - 2}}} \right]

    C

    [MLT2Q1]\left[ {{\rm{ML}}{{\rm{T}}^{ - 2}}{{\rm{Q}}^{ - 1}}} \right]

    D

    [ML2T2Q1]\left[ {{\rm{M}}{{\rm{L}}^2}{{\rm{T}}^{ - 2}}{{\rm{Q}}^{ - 1}}} \right]

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    7.

    The physical quantities not having same dimensions are

    A

    Torque and work

    B

    Momentum and Planck’s constant

    C

    Stress and Young’s modules

    D

    Speed and (μ0ε0)1/2{\left( {{{\rm{\mu }}_0}{{\rm{\varepsilon }}_0}} \right)^{ - 1/2}}

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