Which series of Indian satellites is used for telecommunications, broadcasting, and meteorology?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → INSAT series
The Indian National Satellite System (INSAT), begun in 1983, is a series of multipurpose geostationary satellites. They carry transponders for telecommunications and television broadcasting together with instruments for weather observation (meteorology), as in INSAT-3D, and they also help in disaster warning and search and rescue.
Why the other options are incorrect
Option (1) GSAT series — Incorrect. GSAT satellites are geosynchronous satellites built mainly for communication; they carry no weather instruments.
Option (3) IRS Series — Incorrect. The Indian Remote Sensing satellites, in polar orbits, are used for earth observation, such as mapping crops, forests and water.
Option (4) RISAT series — Incorrect. The Radar Imaging Satellites use radar to photograph the earth by day or night and through clouds.