1.

    Dimension of electric current is

    A

    [M0L0T1Q]\left[ {{M^0}{L^0}{T^{ - 1}}Q} \right]

    B

    [ML2T1Q]\left[ {M{L^2}{T^{ - 1}}Q} \right]

    C

    [M2LT1Q]\left[ {{M^2}L{T^{ - 1}}Q} \right]

    D

    [M2L2T1Q]\left[ {{M^2}{L^2}{T^{ - 1}}Q} \right]

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    1.

    The power of lens is P=1f,  P = \frac{1}{f},\; where f is focal length of the lens . The dimensions of power of lens are

    A

    [LT2]\left[ {{\rm{L}}{{\rm{T}}^{ - 2}}} \right]

    B

    [M0L1T0]\left[ {{{\rm{M}}^0}{{\rm{L}}^{ - 1}}{{\rm{T}}^0}} \right]

    C

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

    D

    None of these

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