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.

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

ANSWER DOWNLOAD EXAMIANS APP

Communication Systems
DVD uses

None of these
Laser beam for both recording and playback
Video head for recording and laser beam for playback
Laser beam for recording and video head for playback

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Communication Systems