Q29.A message signal of frequency 100 MHz and peak voltage 100 V is used execute amplitude modulation on a carrier wave of frequency 300 GHz and peak voltage 400 V . The modulation index and difference between the two side band frequencies are: (1) 4; 2 × 108 Hz (2) 0.25; 2 × 108 Hz (3) 4; 1 × 108 Hz (4) 0.25; 1 × 108 Hz
What This Question Tests
The question asks for the modulation index and the difference between sideband frequencies in an amplitude modulation process, requiring direct application of relevant formulas.
Concepts Tested
Formulas Used
μ = A_m / A_c
f_USB = f_c + f_m
f_LSB = f_c - f_m
Difference = 2f_m
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📋 Question Details
- Chapter
- Communication Systems
- Topic
- Amplitude modulation
- Year
- 2019
- Shift
- 10 Apr Shift 1
- Q Number
- Q29
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 15: Communication Systems
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