Q: For satellite communication, why are microwave links at 10–12 GHz preferred?
(a)Microwaves at such frequencies cannot penetrate clouds
(b)Ionosphere reflects these waves strongly
(c)This band lies in low attenuation atmospheric window
(d)Microwaves at such frequencies do not require any antenna
Correct Answer: (c)
The correct answer is (c): This band lies in low attenuation atmospheric window. Subject: Science & Technology | Sub-topic: Space Technology & Astronomy Note: This answer was determined through AI-based research. Verify against the official answer key when available.