Arrange the given satellites chronologically based on their year of launch.
(A) Aryabhatt
(B) Bhaskar-I
(C) Rohini
(D) INSAT 1-B
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (A), (B), (C), (D)
(A) Aryabhatt — first, launched on 19 April 1975.
(B) Bhaskar-I — second, launched in 1979.
(C) Rohini — third, launched in 1980.
(D) INSAT 1-B — last. It belongs to the INSAT system, established in 1983.
Note: The given answer is as per the official NTA Answer Key. The book does not give the launch year of INSAT 1-B (written INSAT I-B in the book). It names INSAT I-B after Rohini (1980) and APPLE (1981), and gives 1983 as the year the INSAT system was established, which places INSAT 1-B last.
NCERT (2026-27): “India has also made great strides in satellite development. Aryabhatt was launched on 19 April 1975, Bhaskar-I in 1979 and Rohini in 1980. On 19 June 1981, APPLE (Arian Passenger Payload Experiment) was launched through Arian rocket. Bhaskar, Challenger and INSAT I-B have made long-distance communication, television and radio very effective.” “On the basis of configuration and purposes, satellite system in India can be grouped into two: Indian National Satellite System (INSAT) and Indian Remote Sensing Satellite System (IRS). The INSAT, which was established in 1983,is a multi-purpose satellite system for telecommunication, meteorological observation and for various other data and programmes.” |