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单词 Light wavelength
释义

Light wavelength

原声例句
学生科学报

Our eyes can't see that light's very short wavelengths.

我们的眼睛看不到光的非常短的波长。

Crash Course Physics 速成课物理

Light's momentum is equal to the Planck constant divided by the light's wavelength.

光的量子等于普朗克常数 除以光的波长。

Crash Course Physics 速成课物理

Exactly how this diffraction pattern looks, depends on the spacing of the slits and the light's wavelength.

这种衍射图案的外观究竟如何, 取决于狭缝的间距和光的波长。

英语百科

Light

A triangular prism dispersing a beam of white light. The longer wavelengths (red) and the shorter wavelengths (blue) get separated.
Electromagnetic spectrum with light highlighted
An example of refraction of light. The straw appears bent, because of refraction of light as it enters liquid from air.

Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is visible to the human eye and is responsible for the sense of sight. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm), or 4.00 × 10 to 7.00 × 10 m, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths). This wavelength means a frequency range of roughly 430–750 terahertz (THz).

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更新时间:2025/6/20 23:46:59