What is a lens ? Distinguish between a convex lens and a concave lens. Which of the two is a converging lens : convex lens or concave lens ?
Convex lens
A text-book in general physiology and anatomy. Physiology, Comparative; Anatomy. I'lG-. 218 Effect of lenses on rays of light; A, a concave lens spreading the rays; £, a convex lens bending
2.5: Thin Lenses - Physics LibreTexts
Concave Lens Uses & Examples | What is a Concave Lens? - Video & Lesson Transcript | Study.com