Table of Contents
What happens when light passes from air to water?
Refraction of Light: as it passes from less dense to more dense mediums. When light passes from a less dense to a more dense substance, (for example passing from air into water), the light is refracted (or bent) towards the normal. The bending occurs because light travels more slowly in a denser medium.
What type of reflection occurs when light hits an irregular surface?
8th grade science-chapter 6/7
| A | B |
|---|---|
| diffuse reflection | occurs when light hits an irregular surface |
| regular reflection | occurs when light hits a smooth surface |
| concave mirror | surface curves inward |
| real image | formed when light rays meet at a point |
Is a curved piece of glass or some other transparent material that can refract light?
Light c3 t3
| Question | Answer |
|---|---|
| A curved piece of glass or other transparent material that is used to refract light is called a ____? | lens. |
| When light rays enter a new medium at an angle, what does the change in speed cause the rays to do? | causes th light rays to bend. |
| What are two types of lens? | cancave convex |
What image is formed when light rays meet?
An image formed by reflection may be real or virtual. A “real” image occurs when light rays actually intersect at the image, and become inverted, or turned upside down. A “virtual” image occurs when light rays do not actually meet at the image. Instead, you “see” the image because your eye projects light rays backward.
What are the effects of refraction of light?
The major effects of refraction of lights are: Bending of light. Change in wavelength of light. Splitting of light rays if it is polychromatic in nature.
What is refraction of light in water?
When light travels from air into water, it slows down, causing it to change direction slightly. This change of direction is called refraction. When light enters a more dense substance (higher refractive index), it ‘bends’ more towards the normal line.
What is the image of a distant object produced by the refraction of light through air layers of different densities?
Mirage – an image of a distant object produced by the refraction of light through air layers having different densities.
What is a transparent object with one or two curved surfaces?
A lens is a transparent object with one or two curved surfaces. It is typically made of glass (or clear plastic in the case of a contact lens). A lens refracts, or bends, light and forms an image.
What happens when light rays meet?
The first law states that light rays move through similar transparent media in straight lines. The second states that when a light ray encounters a smooth, shiny (or conducting) surface, such as a mirror, the ray bounces off that surface.
How is an image formed to refraction of light?
Images are formed at locations where any observer is sighting as they view the image of the object through the lens. So if the path of several light rays through a lens is traced, each of these light rays will intersect at a point upon refraction through the lens.
What is the cause of refraction of light?
The cause of the refraction of light is that light travels at different speeds in different media. Refraction is caused due to the change in speed of light when it enters from one medium to another. When the light goes from air into water, it bends towards the normal because there is a reduction in its speed.