Q2
Which of the following is an active remote sensing technique?
A.
Aerial photography
B.
LiDAR (Light Detection and Ranging)
AnswerC.
Thermal infrared imaging
D.
Multispectral scanning
Answer: Option B
Solution
Answer: Option B
Solution:
Active remote sensing involves emitting signals and detecting their reflections. LiDAR emits laser pulses to map surfaces.