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⚛️ Physics  ·  Units and Measurements  ·  NEET & JEE

Which of the following pairs of physical quantities has the same dimensional formula?

Answer: Work and torque.

  • A Force and pressure
  • B Work and torque
  • C Power and momentum
  • D Energy and force

Correct answer: B. Work and torque

Explanation: Both work and torque have the dimensional formula [ML²T⁻²], even though they are physically different quantities (one is a scalar, the other a vector-like quantity in rotation).

The 7 SI Base UnitsLengthmetre (m)fundamentalMasskilogram (kg)Timesecond (s)Electric Currentampere (A)Temperaturekelvin (K)Amount ofSubstancemole (mol)LuminousIntensitycandela (cd)Every other physical quantity is derived by combining powers of these 7 base units

The 7 SI base units. All derived units (newton, joule, watt, volt, etc.) can be expressed as combinations of these 7 fundamental units raised to various powers.

Concept context

SI base units, dimensional analysis, significant figures, and error propagation. The toolkit every physics calculation relies on.

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