OnlineCBT
Physics · UNITS AND MEASUREMENT
हिन्दीAccording to the SI base units and definitions provided, the SI unit of thermodynamic temperature (kelvin) is defined by taking the fixed numerical value of which fundamental physical constant?
Correct answer · Option 2
Boltzmann constant \( k \)
Explanation
The kelvin is defined by taking the fixed numerical value of the Boltzmann constant k to be \( 1.380649 \times 10^{-23} \text{ J K}^{-1} \).
