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A telephonic communication service is working at carrier frequency of 10 GHz. Only 10 % of it is utilized for transmission. How many telephonic channels can be transmitted simultaneously if each channel requires a bandwidth of 5 kHz ?

1. 2 × 10 3
2. 2 × 10 4
3. 2 × 10 5
4. 2 × 10 6 Students may find similar question in CP exercise sheet : [ JEE Main, Chapter : Communication System, Ex.4, Q.No.8]

Correct answer: 2 × 10 5

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