Name the physical quantity which is measured in calorie.How is it related to the S.I. unit of that quantity?

Explanation

**Step-by-Step Solution:**

1. **Identify the Physical Quantity**: The first step is to identify the physical quantity that is measured in calories. In this case, the physical quantity is heat energy.

2. **State the SI Unit**: Next, we need to mention the SI unit of heat energy. The SI unit for heat energy is Joules (J).

3. **Establish the Relationship**: Finally, we need to establish the relationship between calories and Joules. The relationship is defined as:
\[
...