The incorrect feature of nuclear forces among following is

Options

A. nuclear forces are charge dependent
B. nuclear forces are short range forces
C. nuclear forces shows saturation properties
D. nuclear forces are non -central

Answer

To solve the question regarding the incorrect feature of nuclear forces, we will analyze the properties of nuclear forces one by one and identify which statement is incorrect.

### Step-by-Step Solution:

1. **Understanding Nuclear Forces**:
Nuclear forces are the interactions that hold protons and neutrons (nucleons) together in the nucleus of an atom. They are essential for the stability of the nucleus.

2. **Identifying Features of Nuclear Forces**:
- **Attractive Nature**: Nuclear forces are primarily attractive, which helps in binding the nucleons together.
- **Repulsive Core**: There exists a short-range repulsive force at very close distances to prevent the nucleus from collapsing into a singular point.
- **Short Range**: The effective range of nuclear forces is very short, typically around 1 to 2.5 Fermi (1 Fermi = \(10^{-15}\) meters).
- **Charge Independence**: Nuclear forces act between nucleons regardless of their charge. This means they are not dependent on whether the nucleons are protons or neutrons.
- **Saturation Property**: As more nucleons are added, the nuclear forces do not increase indefinitely; they exhibit saturation, meaning that adding more nucleons does not significantly increase the binding energy.
- **Non-central Nature**: The forces are not central forces; they do not act along the line joining the centers of the nucleons, which contributes to the asymmetrical shape of the nucleus.

3. **Analyzing the Given Statements**:
- **Statement 1**: Nuclear forces are charge dependent. (Incorrect)
- **Statement 2**: Nuclear forces are short-range forces. (Correct)
- **Statement 3**: Nuclear forces show saturation property. (Correct)
- **Statement 4**: Nuclear forces are non-central forces. (Correct)

4. **Conclusion**:
The statement that nuclear forces are charge dependent is incorrect. Nuclear forces do not depend on the charge of the nucleons; they act equally on protons and neutrons.

### Final Answer:
The incorrect feature of nuclear forces is that they are charge dependent.

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