The conic constant describes the curve obtained as a conic surface intersects with a plane. There are three general types of conic section: Hyperbola, Parabola and Ellipse (a Circle is a special Ellipse).

Objective lens microscopefunction

“Objective lens.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/objective%20lens. Accessed 24 Nov. 2024.

Whatare the 3objectivelenseson a microscope