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Home » A male voice after modulation-transmission sounds like that of a female to the receiver. The problem is due to
A male voice after modulation-transmission sounds like that of a female to the receiver. The problem is due to
CBSE | Class 12 | Communication Systems | NCERT Exemplar | Physics
A male voice after modulation-transmission sounds like that of a female to the receiver. The problem is due to

 a) poor selection of modulation index (selected 0 < m < 1)

(b) poor bandwidth selection of amplifiers

(c) poor selection of carrier frequency

(d) loss of energy in transmission

Answer:

The correct option is (b) poor bandwidth selection of amplifiers

Explanation:

The frequency modulated signal is greater than the input signal, which is conceivable due to the amplifiers’ inadequate bandwidth selection. This occurs because the bandwidth of an amplitude-modulated signal is equal to double the modulated signal’s frequency.

i

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