Question

Which wavelength can be most useful for imaging from a satellite in cloud-covered conditions?



select one:



a. 1.4 µm



b. 0.4 µm     



c. 0.4 nm



d. 4 nm?

Answer 1

1.4 is the corrext answer

Answer 2

Answer:

d. $4nm$

Explanation: When electromagnetic radiation such as radio waves, light waves, or infrared (heat) waves travel through space, they leave behind distinctive patterns. Each wave has a distinct size and shape. Wavelength is the separation between peaks (high points). The most popular wavelength range for cloud detection is in the $400$–$2500$nm spectral range since this is where molecules and particles from terrestrial, aquatic, and atmospheric environments interact with solar radiation through processes of absorption, reflection, and scattering.