What Converts for Curvature in a Field So That a Flat

question 3

Multiple Choice

What converts for curvature in a field so that a flat field with uniform focus is seen?

• A) Achromatic objective lens
• B) Plan-achromatic objective lens
• C) Spherical correction ocular lens
• D) Blue filter when placed above the condenser

---

Definitions:

Molecular Formula

A representation of the number and type of atoms in a molecule, without indicating how the atoms are bonded or arranged.

Natural Product

A chemical compound or substance produced by a living organism, found in nature.

IUPAC Name

The systematic name for a chemical substance as designated by the International Union of Pure and Applied Chemistry (IUPAC) guidelines.

Alkene

Hydrocarbons that contain at least one carbon-carbon double bond, part of unsaturated hydrocarbons.