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. The human eye perceives different wavelengths within the visible spectrum as different colors, with retinal cells sensitive to specific wavelength ranges. Using c = fλ, E₀/B₀ = c, I_d = ε₀ dΦ_E/dt, and spectrum classification λ = c/f, evaluation yields Different wavelengths, illustrating EM wave transverse nature and Maxwell's displacement current concept.