Question:

The SI unit of heat is ..........................................

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The SI unit of heat is Joule (J), while Calorie is a commonly used non-SI unit. Always remember, energy in physics is measured in Joules.
  • Calorie
  • Joule
  • Kcal/kg °C
  • Cal/g °C
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The Correct Option is B

Solution and Explanation

Step 1: Understanding the SI unit of heat
The SI (International System of Units) unit for heat is Joule (J). Heat is a form of energy, and in the SI system, energy is measured in Joules. Step 2: Evaluating the given options
- Calorie is a non-SI unit of heat.
- Joule is the SI unit of heat.
- Kcal/kg °C is a unit of specific heat capacity, not heat itself.
- Cal/g °C is also a unit of specific heat capacity.
Thus, the correct answer is \(\mathbf{Joule}\).
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