CLAT GurukulSamudraManthan

Topic 269 · Answers

Aditya-L1 and Proba-3 jointly map solar CMEs

All 10 answers, each with its Book 1 RATNA fact. Try the questions first

  1. Question 1Answer C

    ISRO's first joint analysis of CMEs paired Aditya-L1 with which mission?

    • SOHO
    • Parker Solar Probe
    • Correct answer: Proba-3
    • Solar Orbiter

    Core Trigger: On 16 October 2026 ISRO reported the first joint analysis of coronal mass ejections by Aditya-L1 and Proba-3.From Book 1 RATNA, topic 269, point 1

  2. Question 2Answer D

    In which journal was the joint CME study published?

    • Nature Astronomy
    • Science
    • The Astrophysical Journal
    • Correct answer: Astronomy & Astrophysics

    Events Studied: The study covered CMEs seen on 14 and 16 September 2025 and was published in Astronomy & Astrophysics.From Book 1 RATNA, topic 269, point 2

  3. Question 3Answer A

    Researchers of which institute combined data from the two coronagraphs?

    • Correct answer: Indian Institute of Astrophysics
    • Physical Research Laboratory
    • IUCAA, Pune
    • TIFR, Mumbai

    Lead Team: Researchers at the Indian Institute of Astrophysics combined data from the two coronagraphs.From Book 1 RATNA, topic 269, point 3

  4. Question 4Answer B

    The study found CME magnetic energy comparable to or larger than which energy?

    • Gravitational energy
    • Correct answer: Kinetic energy
    • Nuclear energy
    • Radiant energy

    Key Finding: Mass and thermal energy estimates agreed well; magnetic energy was comparable to or larger than kinetic energy.From Book 1 RATNA, topic 269, point 4

  5. Question 5Answer B

    Which is/are correct? (1) Aditya-L1 carries ASPIICS. (2) ESA's Proba-3 carries ASPIICS.

    • Only 1
    • Correct answer: Only 2
    • Both 1 and 2
    • Neither 1 nor 2

    Instruments: Aditya-L1 carries VELC; ESA's Proba-3 carries ASPIICS, the Association of Spacecraft for Polarimetric and Imaging Investigation of the Corona of the Sun.From Book 1 RATNA, topic 269, point 5

  6. Question 6Answer C

    On which Indian rocket did the Proba-3 formation-flying pair launch in December 2024?

    • GSLV Mk II
    • LVM3
    • Correct answer: PSLV
    • SSLV

    Stakeholders: ISRO and the European Space Agency; the Proba-3 formation-flying pair launched on PSLV in December 2024.From Book 1 RATNA, topic 269, point 6

  7. Question 7Answer D

    How far from Earth is Aditya-L1's position at the Sun-Earth point L1?

    • About 384,000 km
    • About 15 million km
    • About 150 million km
    • Correct answer: About 1.5 million km

    Location: Aditya-L1 sits at the Sun-Earth Lagrange point L1, about 1.5 million km from Earth.From Book 1 RATNA, topic 269, point 8

  8. Question 8Answer A

    On which date was Aditya-L1 launched from Sriharikota?

    • Correct answer: 2 September 2023
    • 14 July 2023
    • 23 August 2023
    • 2 October 2023

    Founded: Aditya-L1 was launched on 2 September 2023 from Sriharikota.From Book 1 RATNA, topic 269, point 9

  9. Question 9Answer B

    Which 1859 event is the strongest geomagnetic storm on record?

    • Halloween Storm
    • Correct answer: Carrington Event
    • Quebec blackout
    • Bastille Day event

    Landmark: The Carrington Event of 1859 is the strongest geomagnetic storm on record, caused by a solar eruption.From Book 1 RATNA, topic 269, point 10

  10. Question 10Answer A

    Which is/are correct? (1) Article 51A(h) makes developing scientific temper a fundamental duty. (2) A CME is a burst of X-rays from the Sun's core.

    • Correct answer: Only 1
    • Only 2
    • Both 1 and 2
    • Neither 1 nor 2

    Duty: Article 51A(h) makes it a fundamental duty to develop scientific temper, humanism and the spirit of inquiry.From Book 1 RATNA, topic 269, point 11

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