Nature of Light
What type of wave is light classified as?
Electromagnetic wave
What happens when light bounces off a surface?
Reflection
What type of mirror curves inward like a bowl?
Concave mirror
What are the three primary colors of light?
Red, green, blue
What device is used to focus light in telescopes and microscopes?
Lens
What is the speed of light in a vacuum?
~300,000 km/s
What is the angle of incidence compared to the angle of reflection?
They are equal
What type of lens is thicker in the center than at the edges?
Convex lens
What happens when you mix all primary colors of light?
You get white light
What type of light is used in remote controls?
Infrared
What part of the electromagnetic spectrum can humans see?
Visible light
What is it called when light bends as it passes from one medium to another?
Refraction
What kind of image does a convex mirror always produce?
Virtual and smaller
What are the cells in the eye that detect color?
Cones
What technology uses fiber-optic cables to send light signals?
Optical communication
What determines the color of visible light?
Its wavelength
Which medium makes light slow down more: air or water?
Water
What happens to light rays passing through a concave lens?
They diverge
What does a prism do to white light?
It separates it into a spectrum
What does a laser produce that makes it different from normal light?
Coherent light
What causes light to behave as both a wave and a particle?
Wave-particle duality
What is the term for the bending of light around a corner or through a narrow opening?
Diffraction
What is the point where light rays converge after passing through a convex lens?
Focal point
Why does a red object appear red?
It reflects red light and absorbs others
How do fiber-optic cables keep light from escaping?
Total internal reflection