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| 1. |
For a television network, 5 xx 10^(5) channels are granted. If the central frequency of the microwave link is 25 GHz and the alloted bandwidth for each channel is 2 KHz, then how much percentage of the link is used for the network ? |
| Answer» <html><body><p>`4%`<br/>`10%`<br/>`25%`<br/>`5%`</p>Solution :Let `x%` of link is used for network. Given, central frequency = 25 GHz <br/> `= 25 <a href="https://interviewquestions.tuteehub.com/tag/xx-747671" style="font-weight:bold;" target="_blank" title="Click to know more about XX">XX</a> 10^(9) Hz` <br/> Bandwidth of channels `= x%` of 25 GHz <br/> `= (x)/(<a href="https://interviewquestions.tuteehub.com/tag/100-263808" style="font-weight:bold;" target="_blank" title="Click to know more about 100">100</a>) xx 25 xx 10^(9) = 25x xx 10^(7)` <br/> Number of channel <br/> `= ("Total Bandwidth")/("Bandwidth needed per channel")` <br/> `<a href="https://interviewquestions.tuteehub.com/tag/5xx-1901301" style="font-weight:bold;" target="_blank" title="Click to know more about 5XX">5XX</a> 10 ^(5) = (25 xx 10 ^(7))/(2 xx 10^(3))` <br/> `10xx 10 ^(<a href="https://interviewquestions.tuteehub.com/tag/8-336412" style="font-weight:bold;" target="_blank" title="Click to know more about 8">8</a>) = 25 x xx 10 ^(7)` <br/> `implies x = 4%`</body></html> | |