In a communication system operating at wavelength 800 nm, only one per – McqOptions

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1.	In a communication system operating at wavelength 800 nm, only one percent of source frequency is available as signal bandwidth. The number of channels accommodated for transmitting TV signals of bandwidth 6 MHz are(Take velocity of light c = 3 × 108 m/s, h = 6.6 × 10-34 J-s)
A.	3.75 × 106
B.	3.86 × 106
C.	6.25 × 105
D.	4.87 × 105
Answer» D. 4.87 × 105

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