Prelims Test Series 2025 HISTORY OPTIONAL COURSES
Office: 011-45090051, 9818333201

INSIGHT UPSC QUIZ

Select Your Subject

GS Geography Physical Geography of World
Q.

Which one of the following is the greatest circle?
Explanation:

ANS. (B) 
A great circle, also known as an orthodrome or Riemannian circle, of a sphere is the intersection of the sphere and a plane which passes through the center point of the sphere, as opposed to a general circle of a sphere where the plane is not required to pass through the center. The equator is the circle that is equidistant from the North Pole and South Pole. It divides the Earth into the Northern Hemisphere and the Southern Hemisphere. Of the parallels or circles of latitude, it is the longest, and the only ‘great circle’ (in that it is a circle on the surface of the earth, centered on the center of the earth). All the other parallels are smaller and centered only on the earth’s axis.
 

More Questions Selected Just For You. Attempt Now!

Select Your Subject