Zaymiey

⚛️ Physics  ·  Units and Measurements  ·  NEET & JEE

Which physical quantity has the same dimensions as Planck's constant?

Answer: Angular momentum.

  • A Linear momentum
  • B Angular momentum
  • C Torque
  • D Energy

Correct answer: B. Angular momentum

Explanation: Planck's constant has dimensions [M L<sup>2</sup> T<sup>-1</sup>], the same as angular momentum (E = h&nu; gives energy&times;time = angular momentum).

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.

Read the full Units and Measurements notes →