What explains the effectiveness of infrared waves in remote sensing applications?
**Infrared waves** λ≈700 nm to 1 mm, f≈10¹² to 4×10¹⁴ Hz, produced by hot bodies and molecular vibrations, wavelength range as per document 700 nm-1 mm, used in remote sensing because IR penetrates haze, thermal imaging detects IR emitted by objects, remote controls, effective for sensing temperature. Infrared waves interact with materials based on their temperature and composition, allowing remote sensing devices to detect variations in heat signatures or material properties. Using c = fλ, E₀/B₀ = c, I_d = ε₀ dΦ_E/dt, and spectrum classification λ = c/f, evaluation yields Thermal interaction,
Ref: NCERT > Physics Book > Electromagnetic Waves > Infrared, Visible Light and Applications