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प्रश्न
Answer the following question :
Define 'bandwidth' and describe briefly its importance in communicating signals ?
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उत्तर
Bandwidth is the range of frequency over which an equipment operates or the part of the spectrum occupied by the signal.
In the communication system, the message signal may be voice, music, pictures or computer data. Each signal has a different range of frequency. Hence, it has a different bandwidth. The type of communication for a given signal depends on the band of frequency that is considered essential for the communication.
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संबंधित प्रश्न
Frequencies in the UHF range normally propagate by means of:
(a) Ground waves.
(b) Sky waves.
(c) Surface waves.
(d) Space waves.
Digital signals
(i) Do not provide a continuous set of values,
(ii) Represent values as discrete steps,
(iii) Can utilize binary system, and
(iv) Can utilize decimal as well as binary systems.
Which of the above statements are true?
(a) (i) and (ii) only
(b) (ii) and (iii) only
(c) (i), (ii) and (iii) but not (iv)
(d) All of (i), (ii), (iii) and (iv).
Distinguish between ‘Analog and Digital signals’.
Draw a diagram showing an amplitude modulated wave by superposing a modulating signal over a sinusoidal carrier wave.
What do you mean by bandwidth of a signal? Give its importance.
Differentiate between Analog and Digital communication.
Broadcasting antennas are generally
The sound produced by a funning fark is a sort of:-
What is meant by deviation in frequency of FM wave?
The audio frequency range is
