The SI unit of audio frequency is the hertz (Hz). It is the property of sound that most determines pitch. The generally accepted standard range of audible frequencies is20 to 20,000 Hz, although the range of frequencies individuals hear is greatly influenced by environmental factors.
112) Audio signals have a maximum bandwidth of about
Answer is:
20 kHz
Explanation:
Related Electronic Devices and Communication MCQ with Answers
Answer is:
750 MHz
Explanation:
Coaxial cables have a bandwidth in the range of 750 MHz
Answer is:
100 GHz
Explanation:
Transmission bandwidth of fiber optic communication can be up to 100GHz
Answer is:
comparable to the wavelength???of the signal (at least??4)
Explanation:
To radiate signals with high efficiency, the antennas should have a size comparable to the wavelength???of the signal (at least??4)
Answer is:
attenuates the radiated signal as a result of energy absorption by it
Explanation:
Ground Wave propagation?is a method of radio frequency?propagation?that uses the area between the surface of the earth and the ionosphere for transmission. Theground wave?can?propagate?a considerable distance over the earth's surface particularly in the low frequency and medium frequency portion of the radio spectrum.