Science & Nature · 2
What is the name of the phenomenon where light bends as it passes through a medium?
Answer
Refraction
Refraction is the bending of light rays as they pass from one transparent medium to another with a different refractive index (speed of light). When light travels from air into denser materials like water or glass, it slows and bends toward the normal, following Snell's law. This optical phenomenon explains how lenses focus light, prisms disperse white light into spectrum colors, and mirages appear in deserts. Understanding refraction was crucial for developing microscopes, telescopes, and corrective eyeglasses.
💡 Did you know?
A straw appears bent in water because light bends at the water-air interface, and your brain interprets it as a straight object at a different angle.
Other options people guess
- Reflection
- Diffraction
- Dispersion
Topics
- physics
- light
- optics
Know your science & nature trivia?
Play a free Science & Nature quiz and see how many you get right — no signup needed to start.
More Science & Nature facts
Science & Nature
In a primary rainbow, which color appears on the outermost edge of the arc?
Red appears on the outside of rainbows and violet inside—yet violet light bends more sharply than red, creating a counterintuitive display.
Science & Nature
What is the name given to the noticeably darker region of sky that appears between a rainbow's primary and secondary bows?
Alexander's dark band—the sky between primary and secondary rainbows—is noticeably darker because light undergoes an extra internal reflection, canceling brightness.
Science & Nature
Which color of visible light bends at the sharpest angle when refracted by raindrops to form a rainbow?
Red appears on the outside of rainbows and violet inside—yet violet light bends more sharply than red, creating a counterintuitive display.
Science & Nature
What is the average distance from Earth to the Sun called?
Mercury orbits at about 0.39 AU, Earth at 1 AU, Neptune at 30 AU—the AU scale makes solar system distances easier to compare.
Science & Nature
What element has the atomic number 1?
Hydrogen comprises about 75% of all atoms in the universe and is the fuel that powers the Sun through nuclear fusion.
Science & Nature
What is the name of the response where your pupils dilate in low light?
Your pupils can change size within milliseconds, allowing you to maintain clear vision across a billion-fold range of light intensities.