Question

If the highest modulating frequency of the wave is 10 kHz, what is the number of stations that can be accommodated in a bandwidth of 200 kHz?

(a) 10

(b) 20

(c) 5

(d) 15

I got this question in an interview for job.

This intriguing question comes from Communication Systems in section Communication Systems of Physics – Class 12

Answer 1

Correct answer is (a) 10

Best explanation: Number of stations = \(\frac {Total \, bandwidth}{(Bandwidth \times station)}\).

Number of stations = \(\frac {200}{(2 \times 10)}\)

Number of stations = 10