An audio signal of amplitude 0.1 V is used is used in amplitude modulation of a carrier wave of amplitude 0.2 V. Calculate the modulation index.

Explanation

To calculate the modulation index for the given audio signal and carrier wave, follow these steps:

### Step-by-Step Solution:

1. **Identify the given values**:
- Amplitude of the modulating signal (audio signal), \( A_m = 0.1 \, \text{V} \)
- Amplitude of the carrier wave, \( A_c = 0.2 \, \text{V} \)

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