The weight of an object will be minimum when it is placed at
किसी वस्तु का भार न्यूनतम होगा जब उसे पर रखा जाएगा।

Options

A. North Pole/उत्तरी ध्रुव
B. South Pole/दक्षिणी ध्रुव
C. Tropic of Cancer/कर्क रेखा
D. Centre of Earth/पृथ्वी का मध्य

Explanation

To determine where the weight of an object is minimum, we need to understand the concept of weight and how it is affected by gravity.

### Step-by-Step Solution:

1. **Understanding Weight**:
Weight (W) is defined as the product of mass (m) and acceleration due to gravity (g). The formula is:
\[ W = m \cdot g \]

2. **Identifying the Variables**:
- The mass (m) of the object is constant.
- The acceleration due to gravity (g) varies depending on the location.

3. **Locations to Consider**:
The question provides four locations:
- North Pole
- South Pole
- Tropic of Cancer
- Center of the Earth

4. **Analyzing Gravity at Each Location**:
- **North Pole**: g is approximately 9.8 m/s².
- **South Pole**: g is also approximately 9.8 m/s².
- **Tropic of Cancer**: g is slightly less than 9.8 m/s², around 9.78 m/s².
- **Center of the Earth**: g is 0 m/s².

5. **Calculating Weight at Each Location**:
- At the North Pole: \( W = m \cdot 9.8 \)
- At the South Pole: \( W = m \cdot 9.8 \)
- At the Tropic of Cancer: \( W = m \cdot 9.78 \)
- At the Center of the Earth: \( W = m \cdot 0 = 0 \)

6. **Conclusion**:
The weight of the object is minimum when it is placed at the **Center of the Earth**, where the acceleration due to gravity is zero, resulting in zero weight.

### Final Answer:
The weight of an object will be minimum when it is placed at the **Center of the Earth**.

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