Communication Systems If output power of a radio receiver is doubled, its volume is increased by __________ dB. 3 2 1 -3 3 2 1 -3 ANSWER DOWNLOAD EXAMIANS APP
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 wrong but R is correct Both A and R are correct and R is correct explanation of A A is correct but R is wrong Both A and R are correct but R is not correct explanation of A A is wrong but R is correct Both A and R are correct and R is correct explanation of A A is correct but R is wrong Both A and R are correct but R is not correct explanation of A ANSWER DOWNLOAD EXAMIANS APP
Communication Systems An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz. 102.3 80.9 113 70.2 102.3 80.9 113 70.2 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Full duplex operation permits transmission in both directions at the same time. False True False True ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The colour of an object is decided by The wavelength transmitted through it Reflected colour for opaque object and wavelength transmitted through it for transparent objects None of these The reflected colour The wavelength transmitted through it Reflected colour for opaque object and wavelength transmitted through it for transparent objects None of these The reflected colour ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Commercial Frequency deviation of FM is 70 kHz 65 kHz 80 kHz 75 kHz 70 kHz 65 kHz 80 kHz 75 kHz ANSWER DOWNLOAD EXAMIANS APP
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