What is the main difference between refraction and diffraction? A Refraction is a phenomenon that affects light; diffraction is a phenomenon that affects sound. B Refraction involves the bending of light; diffraction involves the bending and spreading of light, usually around an obstacle. C Refraction usually happens in the atmosphere; diffraction usually happens closer to the earth's surface. D Refraction involves changes to the density of light; diffraction involves changes to the speed of light.

Refraction is a phenomenon that affects light; diffraction is a phenomenon that affects sound. Refraction involves the bending of light; diffraction involves the bending and spreading of light, usually around an obstacle.

Explanation:

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.