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Question

The SI unit of temperature is/are

This question was previously asked in
RRB NTPC 2024 Undergraduate CBT 1 Question Paper (29-Aug-2025) (Shift 1)
The correct answer is

kelvin

The correct answer is Kelvin (K).

While Celsius (°C) is commonly used, and Fahrenheit (°F) is used in some regions, the International System of Units (SI) officially designates the Kelvin (K) as the base unit of thermodynamic temperature. Celsius is a derived unit, defined relative to the Kelvin scale. Fahrenheit is also a derived unit, but it is not part of the SI system.

Therefore, only Kelvin is the SI unit of temperature.

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