Q. 1 Astronomical Unit (AU)  is equal to how many kilometres ?
Answer: 150 million km
Notes: Astronomical Unit is the unit of length. It is the mean distance between the Sun and the Earth. One AU is equal to 150 million km.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 146 in Astronomy - Universe, Constellations & Galaxies, Stars in above course in App.