Assertion : A wave is motion of matter as a whole in a medium.
Reason : Wind is same as sound wave in air.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Explanation

To solve the question, we need to analyze both the assertion and the reason provided.

### Step 1: Analyze the Assertion
The assertion states: "A wave is motion of matter as a whole in a medium."
- **Explanation**: A wave is a disturbance that travels through a medium, but it does not involve the motion of matter as a whole. Instead, the particles of the medium oscillate around their equilibrium positions, creating a wave. Therefore, the assertion is **false**.

### Step 2: Analyze the Reason
The reason states: "Wind is same as sound wave in air."
- **Explanation**: Wind refers to the bulk movement of air, which involves the actual motion of air molecules from one place to another. In contrast, sound waves are pressure waves that propagate through air without the bulk movement of air itself. Therefore, the reason is also **false**.

### Step 3: Conclusion
Since both the assertion and the reason are false, the correct answer is that both the assertion and reason are false.

### Final Answer
Both assertion and reason are false.

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