Communication Systems In EM waves, polarization Results from longitudinal nature of waves Is always vertical in an isotropic medium Is caused by reflection Is due to transverse nature of waves Results from longitudinal nature of waves Is always vertical in an isotropic medium Is caused by reflection Is due to transverse nature of waves ANSWER DOWNLOAD EXAMIANS APP
Communication Systems When the length of antenna is a whole wavelength The radiation is zero in all directions The radiation at right angles is maximum The radiation is maximum in all directions The radiation at right angles is zero The radiation is zero in all directions The radiation at right angles is maximum The radiation is maximum in all directions The radiation at right angles is zero ANSWER DOWNLOAD EXAMIANS APP
Communication Systems VSB modulation is preferred in TV because It reduces the bandwidth requirement to half It results in better reception It avoids phase distortion at low frequencies None of these It reduces the bandwidth requirement to half It results in better reception It avoids phase distortion at low frequencies None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For attenuation of high frequencies we should use Inductance Resistance Shunt capacitance Series capacitance Inductance Resistance Shunt capacitance Series capacitance ANSWER DOWNLOAD EXAMIANS APP
Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is High power output per transistor Improved efficiency Better linearity The lower modulating power requirement High power output per transistor Improved efficiency Better linearity The lower modulating power requirement ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A zero mean white Gaussian noise is passed through an ideal low pass filter of bandwidth 10 kHz. The output of the samples so obtained would be Correlated Statistically independent Orthogonal Uncorrelated Correlated Statistically independent Orthogonal Uncorrelated ANSWER DOWNLOAD EXAMIANS APP
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