Related Questions

    1.

    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

    6.

    If force is proportional to square of velocity, then the dimensions of proportionality constant are

    A

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

    B

    [ML1T0]\left[ {{\rm{M}}{{\rm{L}}^{ - 1}}{{\rm{T}}^0}} \right]

    C

    [MLT0]\left[ {{\rm{ML}}{{\rm{T}}^0}} \right]

    D

    [M0LT1]\left[ {{{\rm{M}}^0}{\rm{L}}{{\rm{T}}^{ - 1}}} \right]

    Question Tags

    7.

    The dimensional formula of 1ε0e2hc\frac{1}{{{\varepsilon _0}}}\frac{{{e^2}}}{{hc}} is

    A

    [M0L0T0A0]\left[ {{{\rm{M}}^0}{{\rm{L}}^0}{{\rm{T}}^0}{{\rm{A}}^0}} \right]

    B

    [M1L3T2A]\left[ {{{\rm{M}}^{ - 1}}{{\rm{L}}^3}{{\rm{T}}^2}{\rm{A}}} \right]

    C

    [ML3T4A2]\left[ {{\rm{M}}{{\rm{L}}^3}{{\rm{T}}^{ - 4}}{{\rm{A}}^{ - 2}}} \right]

    D

    [M1L3T4]\left[ {{{\rm{M}}^{ - 1}}{{\rm{L}}^{ - 3}}{{\rm{T}}^4}} \right]

    Question Tags

    8.

    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

    9.

    If C be the capacitance and V be the electric potential, then the dimensional formula of CV2C{V^2} is

    A

    [ML3TA]\left[ {{\rm{M}}{{\rm{L}}^{ - 3}}{\rm{TA}}} \right]

    B

    [K0LT2A0]\left[ {{{\rm{K}}^0}{\rm{L}}{{\rm{T}}^{ - 2}}{{\rm{A}}^0}} \right]

    C

    [ML1T2A1]\left[ {{\rm{M}}{{\rm{L}}^1}{{\rm{T}}^{ - 2}}{{\rm{A}}^{ - 1}}} \right]

    D

    [ML2T2A0]\left[ {{\rm{M}}{{\rm{L}}^2}{{\rm{T}}^{ - 2}}{{\rm{A}}^0}} \right]

    Question Tags

    10.

    Dimensions of bulk modulus are

    A

    [M1LT2]\left[ {{{\rm{M}}^{ - 1}}{\rm{L}}{{\rm{T}}^{ - 2}}} \right]

    B

    [ML1T2]\left[ {{\rm{M}}{{\rm{L}}^{ - 1}}{{\rm{T}}^{ - 2}}} \right]

    C

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

    D

    [M2L2T1]\left[ {{{\rm{M}}^2}{{\rm{L}}^2}{{\rm{T}}^{ - 1}}} \right]

    Question Tags

    company logo