JEE Main 2019 Physics question
Not in JEE or NEET syllabus
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 = m/s, h = J-s)
Answer: (C)
Solution
TOPIC NOT IN SYLLABUS: Communication Systems. f = c/λ = Hz; 1% =
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