JEE Main 2019 Physics question
Not in JEE or NEET syllabus
A 100 V carrier wave is made to vary between 160 V and 40 V by a modulating signal. What is the modulation index?
Answer: (B)
Solution
TOPIC NOT IN SYLLABUS: Communication Systems. μ = (160 − 40)/(160 + 40) = 0.6.