Which of the following is an example of artificial satellites?
I. Sputnik-I
II. GSAT-I
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3: Both I and II.
Explanation:
Artificial satellites are man-made objects launched into space to orbit planets. An analysis of the given options is as follows:
I. Sputnik-I: This was the world's first artificial satellite. It was successfully launched into space by the Soviet Union (USSR) on October 4, 1957.
II. GSAT-I: This is a geostationary communication satellite developed using India's indigenous technology. It was placed into orbit by ISRO.
Since both are man-made objects, they serve as examples of artificial satellites.
Additional Facts:
- Aryabhata: This was India's first artificial satellite, launched into space on April 19, 1975, with the assistance of a Soviet launch vehicle.
- Natural Satellites: Objects that naturally orbit planets are called natural satellites (e.g., the Moon is Earth's natural satellite).
- Applications: Artificial satellites are used for communication (TV, mobile phones), weather forecasting, scientific research, and navigation (GPS).
- Rohini: This was India's first satellite to be launched into space from Indian soil (Sriharikota) using an Indian launch vehicle (SLV-3).
Potential Questions for Upcoming Exams:
Question: Which was the world's first artificial satellite launched into space?
Answer: Sputnik-I.
Question: What is the name of India's first indigenous satellite, launched in 1975?
Answer: Aryabhata.
Question: Where is the headquarters of the Indian Space Research Organisation (ISRO) located?
Answer: Bengaluru.