Identify the correct statements.
A. The former USSR pioneered space research.
B. APPLE was an experimental satellite launched by the USA.
C. INSAT-1B was a weather satellite launched by ISRO.
D. Modern communication systems have made possible the concept of a global village.
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → A, C and D only
Note: The given answer is as per the official NTA Answer Key. However, statement C calls INSAT-1B a ‘weather satellite’, which is not correct: INSAT I-B made long-distance communication, television and radio very effective, and weather forecasting through television was only one of its uses. Statement C is taken as correct as per the NTA answer key, as explained below.
A. The former USSR pioneered space research. Correct. Communication through satellites grew from the 1970s after U.S.A. and the former U.S.S.R. pioneered space research.
B. APPLE was an experimental satellite launched by the USA. Incorrect. APPLE was India’s experimental satellite, launched in 1981 through an Arian rocket.
C. INSAT-1B was a weather satellite launched by ISRO. Correct (as per the NTA answer key). INSAT I-B is one of India’s satellites that made long-distance communication, television and radio very effective, and with it weather forecasting through television became a boon.
D. Modern communication systems have made possible the concept of a global village. Correct. Internet, fax, television and radio reach people across place and time; these modern communication systems, more than transportation, have made the global village a reality.
NCERT (2025-26): “Satellite Communication Communication through satellites emerged as a new area in communication technology since the 1970s after U.S.A. and former U.S.S.R. pioneered space research. Artificial satellites, now, are successfully deployed in the earth’s orbit to connect even the remote corners of the globe with limited on-site verification. These have rendered the unit cost and time of communication invariant in terms of distance. This means it costs the same to communicate over 500 km as it does over 5,000 km via satellite. 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. Today weather forecasting through television is a boon.” “Cyber Space – Internet … As billions use the Internet each year, cyberspace will expand the contemporary economic and social space of humans through e-mail, e-commerce, e-learning and e-governance. Internet together with fax, television and radio will be accessible to more and more people cutting across place and time. It is these modern communication systems, more than transportation, that has made the concept of global village a reality.” |