Related Questions

    1.

    Dimensional formula for the universal gravitational constant G is

    A

    [M1L2T2]\left[ {{{\rm{M}}^{ - 1}}{{\rm{L}}^2}{{\rm{T}}^{ - 2}}} \right]

    B

    [M0L0T0]\left[ {{{\rm{M}}^0}{{\rm{L}}^0}{{\rm{T}}^0}} \right]

    C

    [M1L3T2]\left[ {{{\rm{M}}^{ - 1}}{{\rm{L}}^3}{{\rm{T}}^{ - 2}}} \right]

    D

    [M1L3T1]\left[ {{{\rm{M}}^{ - 1}}{{\rm{L}}^3}{{\rm{T}}^{ - 1}}} \right]

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    3.

    The unit of Wien’s constant b is

    A

    Wm2K4{\rm{W}}{{\rm{m}}^{ - 2}}{{\rm{K}}^{ - 4}}

    B

    m1K1{{\rm{m}}^{ - 1}}{{\rm{K}}^{ - 1}}

    C

    Wm2{\rm{W}}{{\rm{m}}^2}

    D

    MK

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    7.

    The dimensions of coefficient of thermal conductivity is

    A

    ML2T2K1M{L^2}{T^{ - 2}}{K^{ - 1}}

    B

    MLT3K1ML{T^{ - 3}}{K^{ - 1}}

    C

    MLT2K1ML{T^{ - 2}}{K^{ - 1}}

    D

    MLT3KML{T^{ - 3}}K

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    10.

    The constant of proportionality 14πε0  \frac{1}{{4{\rm{\pi }}{{\rm{\varepsilon }}_0}}}\; in Coulomb’s law has the following units

    A

    C2Nm2{{\rm{C}}^{ - 2}}{\rm{N}}{{\rm{m}}^2}

    B

    C2N1m2{{\rm{C}}^2}{{\rm{N}}^{ - 1}}{{\rm{m}}^{ - 2}}

    C

    C2Nm2{{\rm{C}}^2}{\rm{N}}{{\rm{m}}^2}

    D

    C2N1m2{{\rm{C}}^{ - 2}}{{\rm{N}}^{ - 1}}{{\rm{m}}^{ - 2}}

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