JEE Main 2022 Physics question
Not in JEE or NEET syllabus
In AM modulation, a signal is modulated on a carrier wave such that maximum and minimum amplitudes are found to be 6 V and 2 V respectively. The modulation index is
Answer: (4)
Solution
The modulation index is = − / + = (6 − 2)/(6 + 2) = 0.5, i.e. 50%.