JEE Main 2022 Physics question
Not in JEE or NEET syllabus
A modulating signal is added to the carrier signal 4sin(12.56 for amplitude modulation. The combined signal is passed through a non-linear square law device. The output is then passed through a band pass filter. The bandwidth of the output signal of band pass filter will be MHz.
Answer: 2
Solution
The square law device produces the frequencies , + , − , , and . After the band pass filter, +
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