Fusion test reactor (Tokamak) is based on

Options

A. Interference
B. Photoelectric effect
C. Magnetic confinement of plasma
D. Motion of charged particles in electric and magnetic field

Explanation

To answer the question about what the fusion test reactor (Tokamak) is based on, we can break down the solution into the following steps:

### Step 1: Understanding Fusion
- **Explanation**: The Tokamak is a type of nuclear reactor that operates on the principle of nuclear fusion. In nuclear fusion, atomic nuclei combine to form a heavier nucleus, releasing a significant amount of energy in the process.
- **Hint**: Remember that fusion is the process that powers the sun and involves combining lighter elements to form heavier ones.

### Step 2: Identifying the Principle of Tokamak
- **Explanation**: The Tokamak uses magnetic confinement to contain the hot plasma in which fusion occurs. Plasma is a state of matter similar to gas but consists of charged particles, including ions and electrons.
- **Hint**: Think about how magnetic fields can be used to control and contain charged particles.

### Step 3: Eliminating Other Options
- **Explanation**: The question mentions several principles:
- **Interference**: This is a wave phenomenon and not related to nuclear reactions.
- **Photoelectric Effect**: This involves the emission of electrons from a material when light shines on it and is unrelated to fusion.
- **Motion of Charged Particles in Electric and Magnetic Fields**: While relevant to plasma behavior, it does not specifically describe the confinement method used in Tokamaks.
- **Hint**: Consider which principles are directly related to nuclear fusion and the containment of plasma.

### Step 4: Conclusion
- **Explanation**: The correct answer to the question is that the fusion test reactor (Tokamak) is based on the magnetic confinement of plasma, which is essential for achieving the conditions necessary for nuclear fusion to occur.
- **Hint**: Focus on the role of magnetic fields in maintaining the stability of the plasma within the reactor.

### Final Answer
The fusion test reactor (Tokamak) is based on the magnetic confinement of plasma.