If a wave of light is reflected by an opaque material, it changes direction. If it refracts (like light going from air into water), it can change direction. Also, gravity can bend light. For example, a black hole can trap light.
Because of a property called refraction. When light enters a material with a different index of refraction from the material it's been traveling in, it puts a "kink" in the path.
of Refraction.
refraction
Only if they enter the lens in the direction parallel to its axis.
Scattering is an interaction of light with matter that causes light to change its energy, direction of motion, or both. so the plain answer is scattering the particles.
A lens works by delaying light. When light rays encounter a lens, they refract the rays in the direction of the slower area, so a lens that is convex - thinker in the middle and thin on the edges - will bend all the light passing through it to come together. We design the lenses as thicker or thinner to deflect the light in the direction we want it to go.
Lenses are based on refraction - the change of direction of rays of light, when they change from one medium to another, such as from air to glass.
Some kind of lens or a change in a substance: the surface of a pond, through a prism, through glass... all of these may refract light.
A converging lens changes the direction of light through the process of refraction. A lens is a device that uses refraction to bend light to form an image.
This is related to a change in the direction of the light - this is called refraction.
REFLECTION
Sure; mirrors, lens, prism, change of medium.
Only if they enter the lens in the direction parallel to its axis.
Scattering is an interaction of light with matter that causes light to change its energy, direction of motion, or both. so the plain answer is scattering the particles.
A lens works by delaying light. When light rays encounter a lens, they refract the rays in the direction of the slower area, so a lens that is convex - thinker in the middle and thin on the edges - will bend all the light passing through it to come together. We design the lenses as thicker or thinner to deflect the light in the direction we want it to go.
Lenses are based on refraction - the change of direction of rays of light, when they change from one medium to another, such as from air to glass.
optic centre is the geometrical centre of the lens the rays of light passing through this point emerges in the same direction without bending.
Light goes in the lens, refraction occurs, and the light exits the lens.
optic centre is the geometrical centre of the lens the rays of light passing through this point emerges in the same direction without bending.
everything basically doesn't change direction, unless a force makes it change or it changes automatically if it is powered by someone or something. This obeys newtons first of inertia. for example, light always travels in one direction, unless you hold a concave lens or convex lens up to it which then bends it and causes it to point in another direction