Related InterviewSolutions

• How do you express amplitude, frequency and phase modulation?
• What is the carrier wave? Why high frequency carrier waves are employed for transmission?A. stationary waveB. carrier waveC. modulated waveD. audio wave
• The ratio of peak value of modulated signal to peak value of carrier signal isA. refractive indexB. modulation indexC. demodulation indexD. none of these
• Frequency modulation and phase modulation together is referred asA. amplitude modulationB. angle modulationC. power modulationD. wave modulation
• The process of superimposing signal frequency (i.e. audio wave) on the carrier wave is known asA. modulationB. demodulationC. amplificationD. rectification
• To avoid distortion in the signal, modulation index should beA. less than 1B. greater than 1C. equal to 1D. less than or equal to 1
• The process in which phase of carrier wave changes in accordance with instantaneous value of modulated signal isA. amplitude modulationB. frequency modulationC. phase modulationD. power modulation
• The process by which some characteristics i.e. amplitude, phase or frequency of hight frequency carrier wave is varied with information signal isA. demodulationB. modulationC. amplificationD. oscillation
• The process in which frequencies of carrier wave changes in accordance with instantaneous value of modulated signal isA. amplitude modulationB. frequency modulationC. phase modulationD. power modulation
• In amplitude modulation, the bandwidth isA. equal to frequency of modulated signalB. double the frequency of modulated signalC. half of frequency of modulated signalD. none of these