There is no effect of rotational motion of earth on the value of g at

Options

A. Poles
B. Equator
C. `45^(@)` latitudes
D. All of these

Answer

To solve the question regarding the effect of the rotational motion of the Earth on the value of \( g \) (acceleration due to gravity), we need to analyze the situation at different points on the Earth's surface.

### Step-by-Step Solution:

1. **Understanding the Concept of \( g \)**:
- The acceleration due to gravity \( g \) is the force of gravity acting on an object per unit mass. It varies slightly depending on where you are on the Earth's surface due to factors like altitude and the Earth's rotation.

2. **Effect of Earth's Rotation**:
- The Earth rotates about its axis, which affects the value of \( g \) at different locations. The centrifugal force due to this rotation acts outward and reduces the effective weight of objects at the equator more than at the poles.

3. **Analyzing the Poles**:
- At the poles, the rotational motion of the Earth has no effect because the poles are located on the axis of rotation. An object at the poles does not experience any centrifugal force due to rotation, as it is not moving in a circular path.

4. **Conclusion**:
- Therefore, the value of \( g \) at the poles remains unaffected by the Earth's rotational motion. This means that the correct answer to the question is that there is no effect of rotational motion of Earth on the value of \( g \) at the poles.

### Final Answer:
There is no effect of the rotational motion of the Earth on the value of \( g \) at the poles.

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