SSC CPO 2020 PYQ — Question 79

SSC CPO - 23 Nov 2020 - Shift 1 • General Awareness • Q79

If the size of the nucleus of an atom is compared with a cricket ball, then the radius of the atom is approximately equal to how many kilometres?

Show answer & explanation

Correct answer: A

Explanation

The correct answer is option 1 i.e. 5.

  • If a cricket ball represents a nucleus, then the radius of an atom would be about 5 km.
  • The radius of the atom is about 10–10 m, while that of the nucleus is 10–15 m.