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 ?

Options

A. `2 xx 10^(3) `
B. `2 xx 10^(4) `
C. `2 xx 10^(5) `
D. `2 xx 10^6`

Answer

C

Explanation

If n = no. of channels
10% of 10 GHz `= n xx 5 KHz `
`or, (10)/(100) xx 10 xx 10^(9) = n xx 5 xx 10^(3) implies n = 2 xx 10^5`