Which of the following is the SI unit of temperature?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. Kelvin (K).
The SI unit of temperature is the Kelvin (K). It is one of the seven base units of the International System of Units (SI). The Kelvin scale starts at absolute zero, the theoretical point where molecular motion ceases, and it is used widely in scientific measurements, particularly in physics and chemistry. Unlike Celsius or Fahrenheit, the Kelvin scale does not use negative values, as 0 K represents the lowest possible temperature.