The dispersion of light which scientist first discovered

It is believed that Newton was the first to observe the dispersion of light using a prism in 1666, and decomposed white light into colored bands (spectrum).

Sunlight is used by a prism to solve the dispersion of seven monochromatic light: red, orange, yellow, green, blue, indigo, and violet. At the beginning of the answer, Newton answered: light dispersion; Newton

Newton's prism dispersion proposed the hypothesis that white light is a mixture of seven colors of light.

The dispersion of light was first discovered by scientist Isaac Newton. In 1666, Newton studied sunlight with a prism and concluded that white light is a mixture of light of different colors (i.e., different wavelengths) with different wavelengths of light having different refractive indices.

The dispersion of light requires a medium that can refract light, and the refractive index of the medium varies with the frequency of the light wave or the wavelength in the vacuum. When polychromatic light is refracted at the interface of the medium, the medium has different refractive indices for different wavelengths of light, and the colors of light are separated from each other due to the different refractive angles formed. In 1672, Newton used a prism to decompose sunlight into colored bands, which was the first dispersion experiment ever conducted.

Usually the refractive index n of the medium

or dispersion rate dn

d with wavelength

to describe the law of dispersion. Any dispersion that is too aggressive can be divided into two types: normal dispersion and abnormal dispersion.

Sir Isaac Newton (January 4, 1643 – March 31, 1727), President of the Royal Society, a famous British physicist, an encyclopedic "all-rounder", the author of "Mathematical Principles of Natural Philosophy" and "Optics".

In his 1687 book The Laws of Nature, he described gravitation and the three laws of motion. These descriptions laid the foundation for the scientific view of the physical world for the next three centuries and became the basis of modern engineering. By demonstrating the consistency between Kepler's laws of planetary motion and his theory of gravity, he showed that the motion of terrestrial objects and celestial bodies follows the same laws of nature; It provided strong theoretical support for the heliocentric theory and promoted the scientific revolution.

In mechanics, Newton clarified the principle of conservation of momentum and angular momentum and proposed Newton's laws of motion. Optically, he invented the reflecting telescope and developed a theory of color based on the observation that a prism diverges white light into the visible spectrum. He also systematically formulated the law of cooling and studied the speed of sound.

In mathematics, Newton shared the honor of developing calculus with Gottfried Wilch. He also proved the binomial theorem of the Guanghu Zhihuaiyi, proposed the "Newton's method" to approximate the zero point of the function, and contributed to the study of power series.

In economics, Newton proposed the gold standard.

The dispersion of light was discovered by Niu Zao. The dispersion of light refers to the phenomenon of the decomposition of polychromatic light into monochromatic light; The phenomenon of polychromatic light being decomposed into monochromatic light through a prism; The phenomenon of optical pulse broadening in optical fibers caused by different group velocities of different wavelengths in the spectral composition of a light source.

Dispersion is also a description of the relationship between a propagation parameter and wavelength of an optical fiber. In 1666, Newton was the first to observe the dispersion of light with a prism and decompose the white light into colored bands (spectrum). The phenomenon of dispersion states that the velocity of light in a medium v=c n (or refractive index n) varies with the frequency f of the light.

The dispersion of light can be achieved with prisms, diffraction gratings, interferometers, etc. The dispersion of light proves that light has a fluctuating nature.

Newton's main achievements: proposed the law of gravitation and Newton's law of motion; co-invented calculus with Leibniz; invention of the reflective telescope and the principle of dispersion of light; He is known as the "father of modern physics".

Newton, discovered with a prism.

The world is colorful, reminding human beings to look at things carefully and be good at analysis, not just look at the surface, just like the white light we say, if it is just pure white, then the world will become lifeless and dull.

However, the world is mysterious and infinitely hidden, and after the analysis of scientists, they unexpectedly came to a conclusion: "white light" is not white, but a combination of seven colors. What do you think of?

This only shows that there are too many unknowns in the world, there are too many nights we need, we only know the surface, yes, just a simple understanding, and life is not actually used. In today's imperfect science and technology, who can say that there are no aliens in the world, and who can say that space cannot live in people! Some people say that the earth is a miracle, so since there are miracles, who can be sure that the miracle is only the earth?

Miracles may be rare, but it is not surprising to know that the universe is so large that tens of billions of planets can accommodate even a few more Earths.

I hope that what I have to say will inspire you!!

White light is not monochromatic light; Light is fluctuating; The angle of deflection after refraction is different at different wavelengths, and the smaller the wavelength, the greater the deflection.

Sunlight (white light) is made up of light of many colors.

Light is a mixture (absolutely, our science teacher told me).

It is proved that the color is different, the deflection angle is also different, and the longer the wavelength, the smaller the frequency.

The dispersion experiment of light shows that light is a mixture (polychromatic light).

Light is penetrating and reflective.

Sunlight is a type of white light.

White light is composed of polychromatic light