Radio waves emitted from an antenna are picked up by a radar after reflection from an aircraft in 4 x 10-3S. How far is the aircraft from the antenna? [c = ...

Assessment: JAMB UTME - Physics - 1993 Subject: Physics

Question 1 Report

Radio waves emitted from an antenna are picked up by a radar after reflection from an aircraft in 4 x 10-3S. How far is the aircraft from the antenna? [c = 3 x 108ms-1 ]
Answer Details
Time = 1 x 4 x 10-3sec

distance = velocity x time

= 3 x 108 x 4 x 10-3

= 6 x 105m

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