A: Light waves can be polarised.
R: Light waves are transverse in nature.

Options

A. IF both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).
B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark(2)
C. IF Assertion is true statement but Reason is false then mark(3)
D. If both Assertion and Reason are false statements, then mark (4)

Answer

To solve the assertion and reason question, we will analyze both statements step by step.

### Step 1: Understanding the Assertion
**Assertion (A): Light waves can be polarized.**
- Polarization is a phenomenon that occurs when waves, such as light waves, vibrate in a single plane.
- Unpolarized light consists of waves vibrating in multiple planes. When unpolarized light passes through a polarizing filter (or polaroid), it becomes polarized, meaning it now vibrates in only one plane.

**Conclusion for Step 1:** The assertion is true because light waves can indeed be polarized.

### Step 2: Understanding the Reason
**Reason (R): Light waves are transverse in nature.**
- Light waves are electromagnetic waves, which means they consist of oscillating electric and magnetic fields.
- In transverse waves, the oscillations are perpendicular to the direction of wave propagation. In the case of light, the electric field and magnetic field oscillate perpendicular to each other and to the direction of the wave's travel.

**Conclusion for Step 2:** The reason is also true because light waves are indeed transverse waves.

### Step 3: Linking the Assertion and Reason
- The reason provided explains why the assertion is true. Only transverse waves can be polarized, and since light waves are transverse, they can be polarized.
- Therefore, the reason supports the assertion.

### Final Conclusion
Both the assertion and reason are true, and the reason correctly explains the assertion. Thus, the correct answer is that both statements are true, and the reason is a valid explanation for the assertion.