Communication Systems
Assertion (A): In FM the frequency of the carrier is varied by the modulating voltageReason (R): FM and PM are two forms of angle modulation.

Both A and R are correct and R is correct explanation of A
A is wrong but R is correct
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong

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Communication Systems
Circular polarization

Involves critical alignment of transmitting and receiving antenna
None of these
Is useful in reducing depolarization effect on received wave
Is useful in discrimination between reception of adjacent beams

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