1.

    The dimensional formula for impulse is

    A

    [MLT1]\left[ {{\rm{ML}}{{\rm{T}}^{ - 1}}} \right]

    B

    [ML1T]\left[ {{\rm{M}}{{\rm{L}}^{ - 1}}{\rm{T}}} \right]

    C

    [M1LT1]\left[ {{{\rm{M}}^{ - 1}}{\rm{L}}{{\rm{T}}^{ - 1}}} \right]

    D

    [ML1T1]\left[ {{\rm{M}}{{\rm{L}}^{ - 1}}{{\rm{T}}^{ - 1}}} \right]

    Question Tags

    Related Questions

    2.

    A chemist measures a reaction rate as 2.5imes1032.5 imes 10^{-3} mol L1^{-1} s1s^{-1}. Express this rate in molecules cm3cm^{-3} μs1\mu s^{-1} (molecules per cubic centimeter per microsecond). Avogadro's number = 6.022imes10236.022 imes 10^{23} molecules/mol.

    A

    1.5imes10121.5 imes 10^{12} molecules cm3cm^{-3} μs1\mu s^{-1}

    B

    2.5imes10182.5 imes 10^{18} molecules cm3cm^{-3} μs1\mu s^{-1}

    C

    1.5imes10151.5 imes 10^{15} molecules cm3cm^{-3} μs1\mu s^{-1}

    D

    4.2imes10204.2 imes 10^{20} molecules cm3cm^{-3} μs1\mu s^{-1}

    Question Tags

    3.

    If force (F), mass (M), length (L) are taken as fundamental quantities, dimensions of the time will be

    A

    [MLF]\left[ {MLF} \right]

    B

    [MLF1]\left[ {ML{F^{ - 1}}} \right]

    C

    [M1/2L1/2F1/2]\left[ {{M^{1/2}}{L^{1/2}}{F^{1/2}}} \right]

    D

    [M1/2L1/2F1/2]\left[ {{M^{1/2}}{L^{1/2}}{F^{ - 1/2}}} \right]

    Question Tags

    6.

    The SI unit of momentum is

    A

    kgm  \frac{{kg}}{{m\;}}

    B

    kg.msec\frac{{kg.m}}{{{\rm{sec}}}}

    C

    kg.m2sec\frac{{kg.{m^2}}}{{{\rm{sec}}}}

    D

    kgimesnewtonkg imes newton

    Question Tags

    company logo