The gravitational force between two bodies is affected by

Options

A. the electric field
B. the magnetic field
C. heat
D. None of these

Explanation

**Step-by-Step Solution:**

1. **Understanding Gravitational Force**: The gravitational force between two bodies is described by Newton's law of universal gravitation. According to this law, the force (F) is directly proportional to the product of the masses of the two bodies (m1 and m2) and inversely proportional to the square of the distance (r) between their centers.

- Formula: \( F \propto \frac{m1 \times m2}{r^2} \)

2. **Factors Affecting Gravitational Force**:
- **Masses of the Bodies**: The gravitational force increases if either of the masses increases. This means that the larger the mass of either body, the stronger the gravitational pull between them.
- **Distance Between the Bodies**: The gravitational force decreases as the distance between the two bodies increases. If the distance doubles, the gravitational force becomes one-fourth as strong.

3. **Identifying Non-Factors**:
- **Electric Field**: The gravitational force does not depend on electric charges or electric fields. Even if the bodies are charged, it does not affect the gravitational force.
- **Magnetic Field**: Similarly, the presence of a magnetic field does not influence the gravitational force between the two bodies.
- **Heat**: Heating the bodies does not change their mass or the distance between them, and thus does not affect the gravitational force.

4. **Conclusion**: The gravitational force between two bodies is affected only by their masses and the distance between them. It is not affected by electric fields, magnetic fields, or heat. Therefore, the answer to the question is that the gravitational force is affected by none of these factors.

**Final Answer**: The gravitational force between two bodies is affected by their masses and the distance between them, but not by electric fields, magnetic fields, or heat.

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