Assertion (A) : Diamond does not reflect light .
Reason (R) : Diamond has low refractive index.

Options

A. If both (A) and (R) are correct and (R) is correct explanation of (A)
B. If both (A) and (R) are correct and (R) is not correct explanation of (A)
C. If (A) is correct , but (R) is incorrect
D. If (A) is incorrect but (R) is correct

Explanation

To analyze the assertion and reason provided in the question, we will break down each part step by step.

### Step 1: Understand the Assertion
**Assertion (A): Diamond does not reflect light.**
- Diamonds are known for their brilliance and sparkle, which is primarily due to their ability to reflect light. However, the assertion claims that diamonds do not reflect light. This statement is misleading because diamonds do reflect light, but the way they do so is different from many other materials.

### Step 2: Understand the Reason
**Reason (R): Diamond has low refractive index.**
- The refractive index of a material indicates how much light is bent or refracted when entering that material. Diamonds actually have a high refractive index (approximately 2.42), which contributes to their brilliance and ability to reflect light effectively. Therefore, this reason is incorrect.

### Step 3: Analyze the Relationship Between Assertion and Reason
- The assertion states that diamonds do not reflect light, which is incorrect. The reason provided states that diamonds have a low refractive index, which is also incorrect since diamonds have a high refractive index.

### Step 4: Conclusion
- Since both the assertion and the reason are incorrect, the correct conclusion is that the assertion is false, and the reason is also false.

### Final Answer
- The correct option is that both the assertion and the reason are incorrect.

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