Question

what are spherical lenses?
plz help me fast...​

Answer 1

Explanation:

Spherical lenses, also known as singlets, are optical lenses with curved surfaces that cause light rays to converge or diverge. ... Both plano convex and double convex lenses are what we call positive lenses; they have positive focal lengths.

Answer 2

Explanation:

Spherical Lenses. A "spherical lens" is a lens whose surface has the shape of (part of) the surface of a sphere.

Spherical lenses, also known as singlets, are optical lenses with curved surfaces that cause light rays to converge or diverge. They are widely used in imaging applications.