Related InterviewSolutions

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• The characteristic impedance of a coaxial cable is of the order ofA. `50Omega`B. `200Omega`C. `270Omega`D. None of these
• Television signal on earth cannot be recevied at distances greater than `100 km` from the transmission station. The reasion behind this is thatA. The recevier antenna is unable to detect the signal a distance greater than `100 km`B. The `TV` programme conists of both audio and video signelsC. The `TV` signals are less powerful than radio signalsD. The surface of earth is curved like a sphere
• What type of modulation is employed in india for radio transmissionA. Amplitude modulationB. Frequency modulationC. Pluse modulationD. None of these
• Long distance radio broadcasts use short wave bands. Explain why?A. Ground waveB. Ionosheric waveC. Direct waveD. Sky wave
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• Laser light is considered to be coherent because it consists ofA. Many wavelengthsB. Uncoordinated wave of many wavelengthC. Coordinated wave of many wavelengthsD. Coordinated wave of a particular wavelength