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 = hν gives energy×time = angular momentum).
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.