Q. The main systems used for generation of SSB are

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Q. An antenna operates effectively when its dimensions are

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Q. The mobile unit of a mobile telephone is generally in

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Q. Assertion (A): Water waves are longitudinal but EM waves are transverse

Reason (R): In an EM wave electric field, magnetic field and propagation are mutually perpendicular.

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Q. Some multiplexing arrangements for telephone system are

1. Space multiplexing
2. Time division multiplexing
3. Frequency division multiplexing

Which of the above allow transmission of many independent signals over a single channel?

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Q. Industrial noise has the frequency range of

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Q. Thermal noise Power is

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Q. The characteristic impedance of coaxial cable is about

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Q. The diameter and thickness of CD are

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Q. If e = 10 sin(10⁸ t + 3 sin 10⁴ t) then carrier frequency is

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Q. Thermal noise is independent of

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Q. The decorative lighting works on the principle of

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Q. In an oscillator crystal, the parallel resonant frequency is

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Q. The maximum range of a radar is proportional to

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Q. Which of the following statement regarding the advantages of the phase discriminator over the slope detector is false?

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Q. The highest modulating frequency typically used in AM systems is

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Q. The line of sight communication requires the transmit and receive antennas to face each other. If the transmit antenna is vertically polarized, for best reception to the receive antenna should be

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Q. The bandwidth of FM for Commercial Purpose is

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Q. In home tape recorders the tape width is 2 inches.

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Q. In MF range, increasing the transmitter power

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