Q31
Which remote sensing method uses the principle of emitting sound waves and recording their echoes?
A.
LiDAR
B.
Radar
C.
SONAR
AnswerD.
Thermal imaging
Answer: Option C
Solution
Answer: Option C
Solution:
SONAR (Sound Navigation and Ranging) uses sound waves to detect underwater objects and topography.It is distinct from LiDAR and Radar which use light and microwaves respectively.