Electromagnetic waves are transverse is nature is evident by

Options

A. polarization
B. interference
C. reflection
D. diffraction

Answer

To solve the question "Electromagnetic waves are transverse in nature is evident by", we will analyze the options provided and determine which one best explains the transverse nature of electromagnetic waves.

### Step-by-Step Solution:

1. **Understanding the Nature of Electromagnetic Waves**:
- Electromagnetic waves consist of oscillating electric and magnetic fields that are perpendicular to each other and also perpendicular to the direction of wave propagation. This characteristic defines them as transverse waves.

2. **Analyzing the Options**:
- The options provided are:
- A) Polarization
- B) Interference
- C) Reflection
- D) Diffraction

3. **Examining Each Option**:
- **Interference**: This phenomenon demonstrates the wave nature of light but does not specifically illustrate the transverse nature of electromagnetic waves.
- **Diffraction**: Similar to interference, diffraction shows that light behaves as a wave but does not indicate its transverse nature.
- **Reflection**: This is a basic property of waves and does not provide evidence for the transverse nature of electromagnetic waves.
- **Polarization**: This phenomenon involves restricting the vibrations of electromagnetic waves to a specific direction. When unpolarized light passes through a polarizer, only the electric field component aligned with the polarizer's orientation is allowed to pass. This confirms that the electric field oscillates in a plane, demonstrating the transverse nature of the wave.

4. **Conclusion**:
- Among the options, polarization is the only phenomenon that directly illustrates the transverse nature of electromagnetic waves. Therefore, the correct answer is **A) Polarization**.

### Final Answer:
Electromagnetic waves are transverse in nature is evident by **polarization**.

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