A message signal of frequency 20 kHz and peak voltage 10 V is used to modulate a carrier of frequency 2 MHz and peak voltage of 15 V. Calculate the modulation index. Why the modulation index is generally less than one ?

Explanation

To solve the problem, we need to calculate the modulation index (μ) using the given data. The modulation index is defined as the ratio of the peak voltage of the message signal (Vm) to the peak voltage of the carrier signal (Vc).

### Step-by-Step Solution:

1. **Identify the Given Values:**
- Frequency of the message signal (fm) = 20 kHz
- Peak voltage of the message signal (Vm) = 10 V
- Frequency of the carrier signal (fc) = 2 MHz
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