What is the SI unit of temperature?

Correct option is A

The correct answer is (a) kelvin

Explanation:
• The SI unit of temperature is the kelvin (K).
• The kelvin is the base unit of temperature in the International System of Units (SI) and is used in scientific measurements.
• The kelvin scale starts at absolute zero, the lowest possible temperature, where the motion of atoms theoretically stops.
• Unlike Celsius and Fahrenheit, which are relative scales, the kelvin scale is an absolute temperature scale.

Information Booster:
• The Celsius scale (°C) is widely used for everyday temperature measurements, but it is not the SI unit.
• The Fahrenheit scale (°F) is used mainly in the United States and a few other countries, but it is not part of the SI system.

Additional Knowledge:
(b) Celsius
• Celsius (°C) is a common scale used for temperature, but it is not the official SI unit.

(c) Fahrenheit
• Fahrenheit (°F) is primarily used in the United States and is not part of the SI system.

(d) Leiden
• Leiden is a term associated with the Leiden jar (a historical device for storing electrical energy), not a temperature unit.