Communication Systems An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz. 113 102.3 70.2 80.9 113 102.3 70.2 80.9 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A woofer should be fed from the input through a Low pass filter High pass filter Band pass filter Band stop filter Low pass filter High pass filter Band pass filter Band stop filter ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The colour of an object is decided by None of these The wavelength transmitted through it The reflected colour Reflected colour for opaque object and wavelength transmitted through it for transparent objects None of these The wavelength transmitted through it The reflected colour Reflected colour for opaque object and wavelength transmitted through it for transparent objects ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The modulation index of an FM is changed from 0 to 1. How does the transmitted power change? Remains unchanged Gets doubled Gets halved Gets increased by 50 percent Remains unchanged Gets doubled Gets halved Gets increased by 50 percent 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
Communication Systems When the length of antenna is a whole wavelength The radiation is zero in all directions The radiation at right angles is zero The radiation is maximum in all directions The radiation at right angles is maximum The radiation is zero in all directions The radiation at right angles is zero The radiation is maximum in all directions The radiation at right angles is maximum ANSWER DOWNLOAD EXAMIANS APP
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