Question

reflection of light flow chart class 10.

chapter 10 light-Reflection and Refraction




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Answer 1

Answer:

A highly polished surface like mirror helps in reflecting most of the light falling on it. You are already familiar with the laws of reflection of light.reflected ray is always in the plane defined by the incident ray and the normal to the surface. The law of reflection can be used.

Explanation:

Reflection of Light

A highly polished surface like mirror helps in reflecting most of the light falling on it. You are already familiar with the laws of reflection of light.

Refractive index, likewise called index of refraction, proportion of the bowing of a beam of light when going from one medium into another. On the off chance that I is the edge of frequency of a beam in vacuum (point between the approaching beam and the opposite to the outside of a medium, called the ordinary) and r is the edge of refraction (edge between the beam in the medium and the typical), the refractive record n is characterized as the proportion of the sine of the edge of rate to the sine of the edge of refraction; i.e., n = sin I/sin r. Refractive file is additionally equivalent to the speed of light c of a given wavelength in void space partitioned by its speed v in a substance, or n = c/v.

There are some typical refractive indices for yellow light where (wavelength equivalent to 589 nanometres [10−9 metre]) are the accompanying: air, 1.0003; water, 1.333; crown glass, 1.517; thick stone glass, 1.655; and jewel, 2.417. Light rays change direction when they reflect off a surface, move from one transparent medium into another, or travel through a medium whose composition is continuously changing. The law of reflection states that, on reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray. (By convention, all angles in geometrical optics are measured with respect to the normal to the surface—that is, to a line perpendicular to the surface.) The reflected ray is always in the plane defined by the incident ray and the normal to the surface. The law of reflection can be used to understand the images produced by plane and curved mirrors. Unlike mirrors, most natural surfaces are