Q. With reference to the Sun, consider the following statements:
1.Corona is less dense than the surface of the Sun.
2.Sun’s surface is a solid mass like Earth.
Which of the statements given above is/are correct?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: A
Notes:
  • Statement 1 is correct: The corona is about 10 million times less dense than the Sun’s surface. This low density makes the corona much less bright than the surface of the Sun.
  • Statement 2 is incorrect: Sun’s surface isn’t solid like Earth’s. Instead, the Sun is made of super-hot, electrically charged gas called plasma. This plasma rotates at different speeds on different parts of the Sun.

Source: Article