Practice question

**IR effectiveness in remote sensing** because IR scattered less than visible by atmosphere, can detect heat signatures, used in satellite imaging for vegetation, moisture, military night vision, illustrating application based on thermal emission and low scattering. Infrared waves are emitted by objects based on their temperature, and detectors can sense these emissions to map temperature variations, making them ideal for thermal imaging. Using c = fλ, E₀/B₀ = c, I_d = ε₀ dΦ_E/dt, and spectrum classification λ = c/f, evaluation yields Temperature-dependent emission, illustrating EM wave transverse nature and Maxwell's displacement current concept.