Light and optics trivia

Try 20 Light and optics trivia questions one at a time, no sign-in needed. Harder questions and review of what you missed continue in the LoreUp app.

• In the human eye, where does the light that has passed through the lens form its image?Light and optics
• Which colour of visible light has the highest frequency?Light and optics
• In a pinhole camera, how is the image of an object usually formed?Light and optics
• Which lens is mainly used in glasses that correct short-sightedness?Light and optics
• What do we call it when white light passed through a prism separates into several colours?Light and optics
• Chopsticks in a cup of water look bent. Which property of light causes this?Light and optics
• Which lens does a magnifying glass use to make a small object look larger?Light and optics
• What do we call it when light changes its direction of travel at the boundary between two different media?Light and optics
• What do we call it when light travelling from a medium of higher refractive index to one of lower index is entirely reflected?Light and optics
• What do we call an image that can be cast directly onto a screen?Light and optics
• At a plane mirror, the angle of incidence and the angle of reflection measured from the normal are equal.Light and optics
• The convex lens of a camera can form a real image on the film or the image sensor.Light and optics
• In an ordinary glass prism, red light bends less than violet light among the visible colours.Light and optics
• You can see yourself in a mirror because the mirror gives off light of its own.Light and optics
• Even inside a single transparent material, light bends into a wavy path all by itself.Light and optics
• White light is made of light of several colours mixed together.Light and optics
• A convex lens is a lens that is thinner in the middle than at the edge.Light and optics
• When an opaque object blocks light, a shadow forms behind the object.Light and optics
• Light bends at the boundary between air and water because the colour of the light changes.Light and optics
• Parallel light that has passed through a concave lens gathers to a single point.Light and optics