Sometimes positive charged particle comes from space towards earth with high velocity. Its deviation due to the magnetic field of earth will be:

Options

A. towards north
B. towards south
C. towards west
D. towards east

Explanation

To solve the question regarding the deviation of a positively charged particle (like a proton) moving towards Earth due to the Earth's magnetic field, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Earth's Magnetic Field**:
- The Earth can be visualized as a giant magnet with a magnetic North Pole and a South Pole. The magnetic field lines emerge from the magnetic South Pole and enter at the magnetic North Pole.

2. **Identify the Direction of the Magnetic Field**:
- In the context of the question, we can assume that the magnetic field (B) is directed from the South Pole to the North Pole, which means it points downwards towards the surface of the Earth in the Northern Hemisphere.

3. **Determine the Charge and Velocity of the Particle**:
- The particle in question is positively charged (like a proton) and is moving towards the Earth with a high velocity (V).

4. **Use the Right-Hand Rule**:
- To find the direction of the force acting on the charged particle due to the magnetic field, we can apply the right-hand rule.
- According to the right-hand rule, point your thumb in the direction of the velocity (V) of the charged particle and your fingers in the direction of the magnetic field (B). The direction your palm pushes will give you the direction of the magnetic force (F) acting on the particle.

5. **Apply the Right-Hand Rule**:
- If we assume the particle is moving horizontally towards the Earth (let's say from the top of the page downwards), and the magnetic field is directed downwards (into the page), we can apply the right-hand rule:
- Thumb points in the direction of V (downwards).
- Fingers point in the direction of B (downwards).
- The palm will face towards the east.

6. **Conclusion**:
- The positively charged particle will be deflected towards the east due to the magnetic force acting on it as it travels through the Earth's magnetic field.

### Final Answer:
The deviation of the positively charged particle due to the magnetic field of the Earth will be towards the **east**.