Communication Systems In TV systems, equalising pulses are sent during Serrations Horizontal retrace Horizontal blanking Vertical blanking Serrations Horizontal retrace Horizontal blanking Vertical blanking ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In case of frequency modulation, modulating voltage remains constant if the modulating frequency is lowered, then Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands remains constant Amplitude of distant sidebands increases Amplitude of distant sidebands decreases Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands remains constant Amplitude of distant sidebands increases Amplitude of distant sidebands decreases ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following does not cause losses in optical fibre cables? Microbending Stepped index operation Attenuation in glass Impurities Microbending Stepped index operation Attenuation in glass Impurities 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 Uncorrelated Correlated Orthogonal Statistically independent Uncorrelated Correlated Orthogonal Statistically independent ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a plate-modulated class C amplifier the plate supply voltage is E. The maximum plate cathode voltage could be almost high as 4E 3E 6E 2E 4E 3E 6E 2E ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The colour of an object is decided by Reflected colour for opaque object and wavelength transmitted through it for transparent objects The reflected colour None of these The wavelength transmitted through it Reflected colour for opaque object and wavelength transmitted through it for transparent objects The reflected colour None of these The wavelength transmitted through it ANSWER DOWNLOAD EXAMIANS APP
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