A microphone converts

Options

A. sound signals into electrical signals
B. electrical signals into sound signals
C. both (1) and (2) above
D. neither (1) nor (2)

Answer

To solve the question "A microphone converts," we need to analyze the function of a microphone in a communication system.

### Step-by-Step Solution:

1. **Understanding the Function of a Microphone**:
- A microphone is a device that captures sound waves (which are mechanical waves) and converts them into a different form of energy.

2. **Conversion Process**:
- When sound waves enter the microphone, they cause a diaphragm inside the microphone to vibrate. These vibrations are then converted into an electrical signal.

3. **Identifying the Options**:
- We have four options:
- Option A: Sound signal into electrical signal.
- Option B: Electrical signal into sound signal.
- Option C: Both 1 and 2 above.
- Option D: Neither 1 nor 2.

4. **Analyzing Each Option**:
- Option A suggests that the microphone converts sound signals into electrical signals. This is correct based on our understanding of how microphones work.
- Option B suggests that the microphone converts electrical signals into sound signals. This is incorrect; this function is performed by a loudspeaker.
- Option C states that both conversions occur. Since the microphone only converts sound to electrical signals, this option is also incorrect.
- Option D states that neither conversion occurs, which is not true as microphones do convert sound to electrical signals.

5. **Conclusion**:
- Based on the analysis, the correct answer is **Option A: Sound signal into electrical signal**.

### Final Answer:
**Option A: Sound signal into electrical signal.**