Prelims 2026 · Science and Technology · Question 43
Which of the following statements with regard to stealth technology is/are correct ?<br/><br/>1. Stealth objects have a very small radar cross-section and are coated with Radar Absorbing Material.<br/>2. Stealth objects can be detected using specific frequencies.<br/>3. Stealth objects are coated with metamaterials to increase the scattering of electromagnetic radiation.<br/><br/>Select the answer using the code given below :<br/>
Answer
1 and 2 only
1 is correct: stealth relies on reducing radar cross-section and using radar-absorbing materials/coatings. 2 is also correct in the broad sense that stealth targets can still be detected by certain radar approaches/frequency regimes, even if tracking and engagement remain harder. 3 is incorrect because stealth materials are used to reduce reflection/backscatter or absorb incident waves, not to increase scattering for easier detection.