Free-Space Path Loss MCQs

Practice Free-Space Path Loss MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1

Antenna & Wave PropagationFree-Space Path Loss

In free space, path loss increases by approximately how much when distance is doubled while frequency remains unchanged?

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Correct Answer: B. 6 dB

Explanation: Free-space received power varies as 1/R², so doubling distance produces about 10log10(4)=6.02 dB additional path loss.

Reference: Standard antenna and wave propagation: free-space path loss

Question 2

Antenna & Wave PropagationFree-Space Path Loss

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Correct Answer: B. 6 dB

Explanation: FSPL is proportional to f², so doubling frequency adds about 6.02 dB of loss for fixed distance and antenna gains.

Reference: Standard antenna and wave propagation: free-space path loss