A
It provides high-resolution images with very short revisit times due to fast movement relative to Earth.
B
It allows persistent real-time monitoring of a fixed region by matching Earth's rotational period.
C
It eliminates all atmospheric drag and space debris risks completely.
D
It enables direct underwater communication without acoustic transponders.
Correct answer: (b) It allows persistent real-time monitoring of a fixed region by matching Earth's rotational period.
Explanation
Option B is correct because a geosynchronous orbit matches Earth's rotational period, allowing the satellite to remain fixed above a specific longitude for persistent real-time monitoring. Option A describes LEO characteristics.
Same topic · past papers
UPSC has asked this before
These previous-year questions sit on the same topic. Open one to practise the earlier ask.
-
2018 · Q61 · General Studies · 2 marks
With reference to the Indian Regional Navigation Satellite System (IRNSS), consider the following statements: 1. IRNSS has three satellites in geostationary and four satellites in geosynchronous orbits. 2. IRNSS covers entire India and about 5500 sq. km beyond its borders. 3. India will have its own satellite navigation system with full global coverage by the middle of 2019. Which of the statements given above is/are correct? -
2025 · Q11 · GS II · 15 marks
"Constitutional morality is the fulcrum which acts as an essential check upon the high functionaries and citizens alike…"In view of the above observation of the Supreme Court, explain the concept of constitutional morality and its application to ensure balance between judicial independence and judicial accountability in India. -
2019 · Q97 · General Studies · 2 marks
Recently, scientists observed the merger of giant 'blackholes' billions of light- years away from the Earth. What is the significance of this observation? -
2026 · Q15 · GS I · 15 marks
Analyze the role of satellite-based technologies in achieving climate-smart agriculture and food security in India. -
2026 · Q15 · GS III · 15 marks
Mention salient features of 'Mission Drishti'. Discuss the imaging techniques used in the satellite launched on 3rd May 2026. Why is it being considered world's first satellite of its kind?