${10^7}:1$

${10^4}:1$

${10^6}:1$

$1:1$

T = \sqrt{\frac{L}{g}}

T = 2π\sqrt{\frac{g}{L}}

T = 2π\sqrt{\frac{l}{G}}

T = 2π\sqrt{\frac{R^2}{GM}}

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

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

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

None of these

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

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

$\left[ {{\rm{ML}}{{\rm{T}}^{ - 2}}{{\rm{A}}^{ - 2}}} \right]{\rm{\;}}$

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

$\left[ {{\rm{ML}}{{\rm{T}}^{ - 2}}} \right]$

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

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

Dimensionless

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

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

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

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

Frequency, angular frequency and angular momentum

Surface tension, stress and spring constant

Acceleration, momentum and retardation

Work, energy and torque

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

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

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

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

Coefficient of viscosity

Impulse

Momentum

Spring constant

Stress and pressure

Angle and strain

Tension and surface tension

Planck’s constant and angular momentum

(1) only

(1) and (2) only

(1), (2) and (3)

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