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JEE Main202126 Feb 2021Evening ShiftPhysicsCommunication SystemActual

If the highest frequency modulating a carrier is 5   kHz , then the number of A M broadcast stations accommodated in a 90   kHz bandwidth are

Correct answer

9

Step-by-step solution

B. W. (Bandwidth) = 2 × maximum frequency at modulating signal = 2 × 5   kHz = 10   kHz ∴ No of stations accommodate = 90 10 = 9

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