Q160 / 160 · TS EAMCET 2020 (09 Sep Shift 1) · Physics
A carrier signal of frequency and peak voltage of is modulated by a message signal of frequency and peak voltage of . Let be the modulation index and be side bands produced. The correct statement is
- A
- Correct answerB
- C
- D
Solution
Given: For carrier signal
Frequency and peak voltage
For message signal
Frequency and peak voltage
The modulation index is defined as the ratio of modulation voltage to the carrier voltage. Thus, .
The frequency of the carrier signal is given as,
Hence, the correct answer is option: 'B'.