Mechanics of Stealth Technology

Statements 1 and 2 are correct. Stealth engineering combines geometric shaping to minimize an aircraft's radar cross-section (RCS) with specialized Radar Absorbing Material (RAM) coatings that absorb incoming radio waves. Statement 2 is correct because stealth systems are optimized for specific operational bands (like X-band radar) and can be detected using alternative frequencies, such as low-frequency VHF/UHF radar bands. Statement 3 is incorrect because advanced coatings aim to absorb or cancel out radar returns rather than increasing electromagnetic scattering, which would increase visibility.