An ellipse has semi-major axis 5 and semi-minor axis 4, with its major axis along the x-axis. Find the distance of each focus from its centre.
Physics · Mathematical tools and vector · Coordinate Geometry
NEET JEE Mains

Question

An ellipse has semi-major axis 5 and semi-minor axis 4, with its major axis along the x-axis. Find the distance of each focus from its centre.

G1 Physics · Accepted Answer

c=√(a²−b²)=√(25−16)=3.