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GATE ECE 2002 | Question: 2.25

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A person with a receiver is $5 \; \mathrm{Km}$ away from the transmitter. What is the distance that this person must move further to detect a $3-d B$ decrease in signal strength?

  1. $942 \mathrm{~m}$
  2. $2070 \mathrm{~m}$
  3. $4978 \mathrm{~m}$
  4. $5320 \mathrm{~m}$

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