Fundamentholfundamenthol
JEE Main2019Physics
Q.

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 band width 6 MHz are (take velocity of light c = 3 × 108m/s,h = 6.6 × 10–34 J-s) 

  1. A

    3.75 × 106 

  2. B

    3.86 × 106

  3. C

    6.25 × 105

  4. D

    4.87 × 105

Solution

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