When a body is taken from the equator to the poles, its weight

Options

A. remains constant
B. increases
C. decreases
D. increase at n-pole and decrease at s-pole

Explanation

To solve the question regarding the change in weight of a body when it is taken from the equator to the poles, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Weight and Gravity**:
- Weight (W) of a body is given by the formula:
\[ W = mg \]
where \( m \) is the mass of the body and \( g \) is the acceleration due to gravity.

2. **Acceleration due to Gravity**:
- The acceleration due to gravity (\( g \)) varies with location on Earth. At the equator, \( g \) is slightly less than at the poles due to the Earth's rotation and its shape (it is an oblate spheroid).

3. **Comparison of \( g \) at Equator and Poles**:
- At the equator, the value of \( g \) is approximately \( 9.78 \, \text{m/s}^2 \).
- At the poles, the value of \( g \) is approximately \( 9.83 \, \text{m/s}^2 \).
- Thus, \( g \) increases as we move from the equator to the poles.

4. **Effect on Weight**:
- Since weight is directly proportional to \( g \), when a body is moved from the equator to the poles, the increase in \( g \) leads to an increase in weight.
- Therefore, the weight of the body increases as it is taken from the equator to the poles.

5. **Conclusion**:
- The correct answer to the question is that the weight of the body increases when it is taken from the equator to the poles.

### Final Answer:
The weight of a body increases when it is taken from the equator to the poles.

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