​In Aditya - L1, the first Indian mission to study the Sun, what does L1 stand for? ​

Correct option is B

Correct Answer: B Lagrangian point 1

Explanation:

• ​In Aditya-L1, the term "L1" refers to Lagrangian Point 1, a strategic location in space. Lagrangian points are positions in space where the gravitational forces of two large celestial bodies, such as the Earth and the Sun, and the centrifugal force balance each other. This allows an object placed at this point to remain relatively stable with minimal fuel consumption.
• L1 is located approximately 1.5 million kilometers from Earth towards the Sun. It provides an uninterrupted view of the Sun, making it ideal for solar observations without the interference of Earth's shadow. The Aditya-L1 mission is dedicated to studying the Sun's corona, solar winds, and solar activities that can influence space weather.

Key highlights of Aditya-L1:

1. It is the first Indian mission to study the Sun, launched by ISRO.
2. The mission aims to investigate solar corona, chromosphere, and solar flares.
3. Instruments onboard include the Visible Emission Line Coronagraph (VELC) and other payloads for studying solar activities.
4. Data from Aditya-L1 will help understand the Sun's impact on Earth’s climate and space weather.

Information Booster:

•  Lagrangian points are named after Joseph-Louis Lagrange, a French mathematician.
  
•  There are five Lagrangian points (L1 to L5) in the Earth-Sun system.
  
•  L1 is frequently used for solar observation satellites, such as NASA’s SOHO.
  
•  Aditya-L1 carries advanced instruments to measure solar radiation and magnetic fields.
  
• Understanding solar activities is crucial for protecting satellites and power grids on Earth from space weather effects.