$70\;N/m$

$7 imes {10^{ - 2}}\;N/m$

$7 imes {10^3}\;N/m$

$7 imes {10^2}\;N/m$

${\rm{J}}{{\rm{m}}^{ - 2}}{{\rm{s}}^{ - 1}}$

${\rm{J}}{{\rm{m}}^{ - 1}}{{\rm{s}}^{ - 2}}$

${\rm{W}}{{\rm{m}}^{ - 2}}$

${\rm{J}}{{\rm{m}}^{ - 2}}$

${10^{15}}{\rm{\;m}}$

${10^{ - 15}}{\rm{\;m}}$

${10^{ - 12}}{\rm{\;m}}$

${10^{12}}{\rm{\;m}}$

Zero error

Parallax

Calibration of instrument

Least count of instrument

$A\,{m^{ - 2}}$

$A\,{m^{ - 1}}$

$A\,{m^2}$

$T\,{m^2}$

Rotation of earth on its axis

Oscillations of quartz crystal

Vibrations of cesium atom

Earth’s orbital motion around the sun

Predicting the exact numerical value of a physical quantity

Checking the correctness of an equation

Deriving relationships between physical quantities

Converting units

Zero error

Parallax

Calibration of instrument

Least count of instrument

C²/N⋅m²

F/m

N⋅m²/C²

H/m

Doubled

Tripled

Quadrupled

8 times the original value

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

$ML{T^{ - 2}}$

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

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