Wave obtained on superimposition of audible frequency e.m. wave is known as

Options

A. carrier wave
B. high frequency wave
C. modulating wave
D. modulated wave

Explanation

To solve the question, "Wave obtained on superimposition of audible frequency e.m. wave is known as," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Terms:**
- First, we need to understand what is meant by "audible frequency e.m. wave." The audible frequency range for humans is from 20 Hz to 20 kHz.

2. **Identifying the Types of Waves:**
- In communication systems, we often deal with different types of waves:
- **Carrier Wave:** A high-frequency wave that carries the information of the modulating signal.
- **Modulating Wave:** The low-frequency wave (in this case, the audible frequency wave) that contains the information to be transmitted.
- **Modulated Wave:** The resultant wave after the modulation process, which combines the carrier wave and the modulating wave.

3. **Understanding Modulation:**
- Modulation is the process where the modulating wave (audible frequency) is superimposed onto a carrier wave (high-frequency radio wave). This allows the transmission of the audible signal over long distances.

4. **Determining the Correct Answer:**
- The question asks for the wave obtained from the superimposition of an audible frequency e.m. wave. Since the audible frequency wave is modulated onto a carrier wave, the resultant wave is referred to as the **Modulated Wave**.

5. **Final Answer:**
- Therefore, the wave obtained on superimposition of an audible frequency e.m. wave is known as the **Modulated Wave**.