Gravitation is the phenomenon of interaction between

Options

A. Point masses only
B. Any arbitrary shaped masses
C. Planets only
D. None of these

Answer

To solve the question "Gravitation is the phenomenon of interaction between:", we need to analyze the options provided and understand the concept of gravitation.

### Step-by-Step Solution:

1. **Understanding Gravitation**:
Gravitation is a fundamental force of nature that causes two bodies with mass to attract each other. This interaction occurs between any two masses in the universe, regardless of their shape or size.

2. **Analyzing the Options**:
- **Option 1**: Point masses only - This option implies that gravitation only occurs between point masses, which is not true. Gravitation occurs between any masses, not just point masses.
- **Option 2**: Any arbitrary shaped masses - This option correctly states that gravitation can occur between any shapes of masses, whether they are point masses, spherical bodies, or irregular shapes.
- **Option 3**: Planets only - This option is incorrect because gravitation is not limited to planets; it applies to all masses.
- **Option 4**: None of these - This option is incorrect since we have identified a correct option.

3. **Conclusion**:
Based on the analysis, the correct answer is **Option 2: Any arbitrary shaped masses**. Gravitation is indeed the phenomenon of interaction between any masses, regardless of their shape.

### Final Answer:
Gravitation is the phenomenon of interaction between **any arbitrary shaped masses**.

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