100

1000

420

42

Stress and pressure

Angle and strain

Tension and surface tension

Planck’s constant and angular momentum

$M{L^3}{T^{ - 1}}{Q^{ - 2}}$

$M{L^3}{T^{ - 2}}{Q^{ - 1}}$

$M{L^2}{T^{ - 1}}{Q^{ - 1}}$

$ML{T^{ - 1}}{Q^{ - 1}}$

Torque and work

Momentum and Planck’s constant

Stress and Young’s modules

Speed and ${\left( {{{\rm{\mu }}_0}{{\rm{\varepsilon }}_0}} \right)^{ - 1/2}}$

Frequency, angular frequency and angular momentum

Surface tension, stress and spring constant

Acceleration, momentum and retardation

Work, energy and torque

$\frac{{{h^2}}}{{{e^2}}}$

$\frac{{{h^2}}}{e}$

$\frac{h}{{{e^2}}}$

$\frac{h}{e}$

$3.8 imes 10^{10}$ km

$1.2 imes 10^{13}$ km

$3.8 imes 10^{13}$ km

$1.2 imes 10^9$ km

(1) only

(1) and (2) only

(1), (2) and (3)

(1), (2), (3) and (4)

${c^2}{\left[ {G\frac{{{e^2}}}{{4\pi {\varepsilon _0}}}} \right]^{1/2}}$

$\frac{1}{{{c^2}}}{\left[ {\frac{{{e^2}}}{{G4\pi {\varepsilon _0}}}} \right]^{1/2}}$

$\frac{1}{c}G\frac{{{e^2}}}{{4\pi {\varepsilon _0}}}$

$\frac{1}{{{c^2}}}{\left[ {G\frac{{{e^2}}}{{4\pi {\varepsilon _0}}}} \right]^{1/2}}$

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

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

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

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

$\left[ {{\rm{M}}{{\rm{L}}^{ - 2}}{\rm{TA}}} \right]$

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

$\left[ {{{\rm{L}}^{ - 2}}{\rm{TA}}} \right]$

None of these