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    2.

    Write dimensional formula for the intensity of radiation

    A

    M1L0T3{M^1}{L^0}{T^3}

    B

    M1L0T3{M^1}{L^0}{T^{ - 3}}

    C

    M1L2T2{M^1}{L^2}{T^{ - 2}}

    D

    M1L2T3{M^1}{L^2}{T^{ - 3}}

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    5.

    Dimensions of 1μ0ε0\frac{1}{{{{\rm{\mu }}_0}{{\rm{\varepsilon }}_0}}}, where symbols have their usual meanings, are

    A

    [L1T]\left[ {{{\rm{L}}^{ - 1}}{\rm{T}}} \right]

    B

    [L2T2]\left[ {{{\rm{L}}^{ - 2}}{{\rm{T}}^2}} \right]

    C

    [L2T2]\left[ {{{\rm{L}}^2}{{\rm{T}}^{ - 2}}} \right]

    D

    [LT1]\left[ {{\rm{L}}{{\rm{T}}^{ - 1}}} \right]

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    9.

    If the velocity of light (C)\left( C \right) gravitational constant (G)\left( G \right) and Planck’s constant hh are chosen as fundamental units,then the dimensions of mass in new system is

    A

    C1/2G1/2h1/2{C^{1/2}}\,\,{G^{1/2}}\,\,{h^{1/2}}

    B

    C1/2G1/2h1/2{C^{1/2}}\,\,{G^{1/2}}\,\,{h^{ - 1/2}}

    C

    C1/2G1/2h1/2{C^{1/2}}\,\,{G^{ - 1/2}}\,\,{h^{1/2}}

    D

    C1/2G1/2h1/2{C^{ - 1/2}}\,\,{G^{1/2}}\,\,{h^{1/2}}

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    10.

    If the velocity of light cc, gravitational constant GG, and Planck's constant hh are chosen as fundamental units, then the dimensions of mass in this system are:

    A

    [c1/2G1/2h1/2][c^{1/2}G^{-1/2}h^{1/2}]

    B

    [c1/2G1/2h1/2][c^{-1/2}G^{1/2}h^{1/2}]

    C

    [c1/2G1/2h1/2][c^{1/2}G^{1/2}h^{-1/2}]

    D

    [c1/2G1/2h1/2][c^{-1/2}G^{-1/2}h^{-1/2}]

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