The wavelength of the light ray does not change The angle of incidence is unequal to the angle of refraction during the formation of an image. The angle of incidence is equal to the angle of reflection during the formation of an image. Speed of the light changes accordingly in optically denser and rarer mediums. Speed of the light is not affected in reflection Generally shown in the mirrors or other optically plane surfaces Two types of reflection are regular reflection and irregular or diffused reflection The process of changing the direction or bending of light when propagating from one transparent medium to another The incident ray, reflected ray, and the normal drawn at the point of incidence, all lie on the same planeĭifference between Reflection and Refractionīouncing back of light rays in the same direction in the same medium The law states that the angle of incidence is equal to the reflection on an optically smooth surface. ![]() Irregular reflection generally occurs on the surface of a wall, piece of paper, or a blackboard. No definite images are produced in irregular reflection, the person will be able to see the rough interface instead of the source of the light. The parallel rays of light incident on a rough surface will be reflected in different directions. This phenomenon is also called diffused reflection. Irregular reflection is normally observed when the interface is a rough surface. Regular reflection normally occurs in objects like a plain mirror, and stainless steel. ![]() The Incident light and reflected light will have the same pattern. Regular reflection occurs when the interface is optically plane. There are two different types of reflection: Regular reflection and irregular reflection. Reflection happens in the same medium, the refractive index will be the same. The crux of reflection is that the atoms of the reflecting surface absorb energy from the source and radiate energy in the form of light rays. The process of bouncing back off a ray of light after striking a medium is called reflection. The Refractive index provides a measure of the velocity of light in a certain medium. It is defined as the ratio of the velocity of light in a vacuum with respect to the velocity of light in a medium. The term n 2/n 1 is called the refractive index of the second medium with respect to the refractive index of the first medium. The law is applicable for a specific pair of mediums and the color of light used. The law states that the ratio of the sine of the angle of incidence and the sine of the angle of refraction is a constant. Second law of refraction – This law is also known as the Snells Law. During the process of refraction, the velocity and wavelength of light change from their initial value, whereas the frequency of the light ray remains the same as that of the initial value.įirst law of refraction – It states that the incident ray, refracted ray, and the normal to the interface of incidence point, all lie in the same plane. Also when a ray of light travels from an optically rarer medium to a denser medium, it gets bent away from the normal. When a ray of light travels from an optically denser medium to an optically rarer medium, it gets bent towards the normal. The phenomenon of refraction is the result of different velocities of light in different mediums. The medium in which the velocity of light is larger is called optically rarer medium and the medium in which the velocity of light is smaller is called the optically denser medium. ![]() Refraction is the phenomenon of bending light when it passes from one transparent medium to another.
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