[Answer] a lens is designed to work in the visible, near-infrared, and near-ultraviolet. the best resolution of this lens from a diffraction standpoint is

Step 1 : Introduction to the question "a lens is designed to work in the visible, near-infrared, and near-ultraviolet. the best resolution of this lens from a diffraction standpoint is"

...Optical resolution describes the ability of an imaging system to resolve detail in the object that is being imaged. An imaging system may have many individual components including a lens and recording and display components.

[Answer] What is the common term for electromagnetic radiation visible to the naked human eye?

Step 1 : Introduction to the question "What is the common term for electromagnetic radiation visible to the naked human eye?"

...Electromagnetic energy that is visible to the human eye is commonly called light. It is energy emitted by matter that is in some way excited or when matter is hot. The range of energy we can see is only a very small swath of all the energy ranges in the electromagnetic radiation spectrum. Sometimes this energy behaves as a wave and other times it behaves as a particle. Thus, the science of physics considers it a bit of both. The different colors we see indicate how much energy is in the light, from the reds (low energy) to the blues (high energy.) Source: PhysicsForIdiots.com

[Answer] In what year will Halley's comet be visible again in the night sky?

Step 1 : Introduction to the question "In what year will Halley's comet be visible again in the night sky?"

...Halley's comet is probably a name most recognize. It is classified as a "periodic" comet, meaning it swings by Earth's vicinity on a regular schedule. It can be seen in the night sky every 75 years, give or take a month or two. It last lit the sky in 1986, making its projected return sometime in 2061. Historical records showed the comet making an appearance in 1531, 1607 and 1682. English astronomer Edmond Halley figured out that these appearances were the same comet and correctly predicted the comet's return in 1758. Source: Space.com

[Ans] When will Halley's Comet be visible on Earth again?

Step 1 : Introduction to the question "When will Halley's Comet be visible on Earth again?"

...Halley is the only known short-period cometthat is regularly visible to the naked eye from Earth, and the only naked-eye cometthat might appear twice in a human lifetime. Halley last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-2061.