SSC Selection Post 2025 PYQ — Question 4

Correct Answer

Observe solar activity

Explanation

Aditya-L1 is India’s first space-based mission dedicated to the comprehensive study of the Sun. It is positioned in a halo orbit around the Sun-Earth Lagrangian Point 1 (L1), which is approximately 1.5 million kilometers from Earth. This strategic location allows the spacecraft to observe the Sun continuously without any occultation or eclipses. The mission aims to study solar phenomena such as the solar corona, solar emissions, solar winds, and flares, which are crucial for understanding space weather and its impact on Earth’s technological infrastructure.

Key Points

The mission carries several scientific payloads designed to study the photosphere, chromosphere, and the outermost layers of the Sun (the corona) using electromagnetic, particle, and magnetic field detectors. By gathering data from the L1 point, scientists can monitor solar activities in real-time, providing insights into the Sun's complex dynamics that influence the interplanetary medium.

Important Questions and Answers

Question: What does the "L1" in Aditya-L1 stand for?

Answer: It stands for Lagrangian Point 1, a point in space where the gravitational forces of two large bodies (the Sun and the Earth) balance the centripetal force required for a small object to move with them.

Question: Which organization launched the Aditya-L1 mission?

Answer: The Indian Space Research Organisation (ISRO).