Optics Trivia

Explore optics trivia with 31 supporting Trivia Castle questions, related topics, and a direct link into the game.

31 approved Trivia Castle questions contribute to this hub.

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Try a few Optics questions

Binoculars are designed to let a person view distant objects using how many eyes at once?

Answer: Two

Bonus fact: Binoculars provide a separate optical path for each eye.

What do the numbers 8×42 on binoculars indicate, with the 8 referring to what?

Answer: Magnification

Bonus fact: In 8×42 binoculars, 8× is the magnification and 42 mm is the diameter of the objective lenses.

Which type of prism arrangement gives many traditional binoculars their offset, zigzag-shaped optical path?

Answer: Porro prism

Bonus fact: Porro-prism binoculars use paired prisms to fold the light path and erect the image.

Which three colors are the additive primary colors of light?

Answer: Red, green, and blue

Bonus fact: Screens create colors by combining red, green, and blue light.

What color is produced by mixing red and green light in equal amounts?

Answer: Yellow

Bonus fact: In additive color mixing, red plus green light produces yellow.

A laser produces a concentrated beam of what?

Answer: Light

Bonus fact: Laser light is highly directional.

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