In the visible light spectrum, which color has the longest wavelength? A. Red B. Blue C. Green D. Violet 相关知识点: 试题来源: 解析 A。解析:在可见光光谱中,不同颜色的光波长不同。红色光的波长最长,约为620 - 750纳米。蓝色光的波长较短,绿色光波长处于中间,而紫色光波长最短。所以这题答案...
The colors of visible light are called thevisible spectrum. The colors of the spectrum correspond to wavelength ranges. Sir Isaac Newton divided the spectrum into red, orange, yellow, green, blue, and violet. He later added indigo, but Newton's "indigo" was closer to modern "blue," while ...
Learn the definition of visible light and electromagnetic radiation. Explore the visible light spectrum and the wavelength and frequency of visible...
There is no wavelength assigned to indigo. If you want a number, it's around 445 nanometers, but it doesn't appear on most spectra. There's a reason for this. English mathematicianIsaac Newton(1643–1727) coined the wordspectrum(Latin for "appearance") in his 1671 book "Opticks." He ...
wavelength The categorization ofelectromagneticwaves can be done based on the frequency otherwise wavelength. The wavelength range of visible light ranges from 400 nanometers to 700 nanometers. In a complete electromagnetic spectrum, the light makes up only a small portion. The waves like electromagnet...
Humans see light at the lower end of the visible spectrum, having a longer wavelength, about 740 nm, as red; we perceive light in the middle of the spectrum as green; and see light at the upper end of the spectrum, with a wavelength of about 380 nm, as violet. All other colors ...
A wide variety of instruments exist for recording the intensity of light as a function of wavelength. In the visible and ultraviolet regions of the spectrum, these include dispersive spectrometers (based on gratings and prisms) and nondispersive spectrometers (usually interferometric in nature). A ...
D. visible light E. infrared rays F. microwaves G. radio waves electromagnetic spectrum n. The entire range of electromagnetic radiation, which includes, in order of increasing frequency and decreasing wavelength, radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, x-ray...
Learn more about this topic: Visible Color Spectrum | Definition, Wavelength & Light from Chapter 17 / Lesson 12 118K Learn the definition of the visible color spectrum. Review the visible spectrum and a chart of each color spectrum wavelength in order from low to high frequencies. ...
17.2The Electromagnetic Spectrum Allelectromagnetic wavesof whatever wavelength travel with the same speed in a vacuum, namely 3×108m s−1(186,000 miles per second). This is the speed of lightin vacuo, light itself being electromagnetic radiation of wavelengths of the order of 6×10−7m....