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NDA 1 2024 GAT, question 70

Topic: Geography

Q70

Which of the following statements regarding ‘aurora’ is/are correct ?

  1. The solar wind upon reaching the Earth's atmosphere is directed towards two magnetic poles and a colourful display of lights is seen in the night sky.

  2. The particles interact with the different gases of the atmosphere and each gas glows with a particular colour.

  3. In April 2023, aurora was captured in the night sky in India by the Indian Astronomical Observatory at Hanle, Ladakh.

Select the answer using the code given below :

  1. (a) 1 only
  2. (b) 2 and 3 only
  3. (c) 1 and 3 only
  4. (d) 1, 2 and 3Correct answer

Solution.

Answer: (d) 1, 2 and 3

  1. Earth’s magnetic field guides charged particles toward polar regions, where collisions excite atmospheric gases.
  2. Different emissions produce different colours.
  3. Hanle recorded an auroral display during the April 2023 geomagnetic storm.
  4. All three statements are correct at the level of the question.