Transverse wave nature is established by

Options

A. interference
B. diffraction
C. polarisation
D. all the above

Answer

To establish the transverse wave nature, we need to analyze the options provided and determine which phenomenon specifically indicates that a wave is transverse. Here’s a step-by-step solution:

### Step 1: Understand the Types of Waves
Waves can be classified into two main types: transverse waves and longitudinal waves. In transverse waves, the particle motion is perpendicular to the direction of wave propagation, while in longitudinal waves, the particle motion is parallel to the direction of wave propagation.

**Hint:** Remember the definitions of transverse and longitudinal waves.

### Step 2: Analyze Interference
Interference occurs when two or more waves superpose to form a resultant wave. This phenomenon can happen with both transverse and longitudinal waves. Therefore, interference alone cannot determine the nature of the wave.

**Hint:** Consider whether interference can distinguish between wave types.

### Step 3: Analyze Diffraction
Diffraction is the bending of waves around obstacles or through openings. Like interference, diffraction can occur with both transverse and longitudinal waves. Thus, it does not help in establishing the transverse nature of waves.

**Hint:** Think about whether diffraction patterns are specific to one type of wave.

### Step 4: Analyze Polarization
Polarization is a phenomenon that occurs only with transverse waves. In polarization, the vibrations of the wave are restricted to a single plane. Longitudinal waves cannot be polarized because their particle motion is along the direction of wave propagation. Therefore, the ability to be polarized is a definitive characteristic of transverse waves.

**Hint:** Recall the definition of polarization and its relation to wave motion.

### Step 5: Conclusion
Based on the analysis, the transverse wave nature is established by polarization. This is the only phenomenon among the options that can distinctly indicate that a wave is transverse, as longitudinal waves cannot undergo polarization.

**Final Answer:** The transverse wave nature is established by polarization.

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