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A bandwidth of 6MHz is available for A.M...

A bandwidth of 6MHz is available for A.M. transmission . The maximum frequency of the audio signals used for modulating the carrier wave is 5 KHz. How many stations can be broadcasted simultaneously within this band without interferring with each other ?

A

400

B

500

C

600

D

700

Text Solution

Verified by Experts

The correct Answer is:
C
Bandwidth for each station = 2 x maximum frequency of audio signal
= 2 x 5 KHz = 10 KHz = `10xx10^3` Hz = `10^4` Hz
`therefore` Available bandwidth =6 MHz = `6xx10^6` Hz
`therefore` No. of stations that can be broadcast within the bandwidth of 6 MHz =`(6xx10^6)/10^4`=600
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