Any whose wavelength does not exceed 379 nm.
As stated earlier: Violet light: 380-450 nm Red light: 620-750 nm nm=nanometer=10-9 meter
The range of wavelengths of visible light is approximately 380 to 750 nanometers (nm). In comparison, the wavelengths of audible sound typically range from about 1.7 centimeters (17,000 nm) for high frequencies to about 17 meters (17,000,000 nm) for low frequencies. Thus, visible light wavelengths are significantly shorter than those of audible sound, with light being several orders of magnitude smaller.
No. Heat is infrared radiation ("infra" means "lower"). Lower frequency means longer wavelength. All radiation is captured by antennas that resonate at the frequency of the radiation. The "antennas" for visible light are electrons that use the radiation to jump into excited states and cause optical neurons to fire. The "antennas" of heat (infrared) are bigger -- they are molecules that jiggle faster when the radiation hits them. That jiggling is heat.
Visible light wavelengths range from approximately 400 to 700 nanometers. This corresponds to violet light at the shortest wavelengths and red light at the longest wavelengths in the visible spectrum.
The measurement used for the wavelengths of color is typically in nanometers (nm). Each color has a specific range of wavelengths in the visible spectrum, with red having longer wavelengths around 700 nm and violet having shorter wavelengths around 400 nm.
As stated earlier: Violet light: 380-450 nm Red light: 620-750 nm nm=nanometer=10-9 meter
Wavelengths shorter than visible light include ultraviolet (UV) light, X-rays, and gamma rays. UV light has wavelengths ranging from about 10 nm to 400 nm, while X-rays range from approximately 0.01 nm to 10 nm, and gamma rays are even shorter, typically less than 0.01 nm. These wavelengths are shorter than the visible spectrum, which ranges from about 400 nm (violet) to 700 nm (red).
The human eye can perceive light wavelengths ranging from approximately 380 nanometers (nm) to about 750 nm. This range encompasses the visible spectrum, which includes colors from violet (shorter wavelengths) to red (longer wavelengths). Beyond this range, ultraviolet light (below 380 nm) and infrared light (above 750 nm) are not visible to the human eye.
380 to 750 nm
Ultraviolet has a shorter wavelength than radio waves. Ultraviolet waves have shorter wavelengths ranging from about 10 nm to 400 nm, while radio waves have much longer wavelengths ranging from about 1 millimeter to over 100 kilometers.
- Long wavelengths - Mid-size wavelengths - Short wavelengths The reddish colors are the long wavelengths, the mid-size wavelengths are the greenish colors and the short wavelengths are the bluish colors.
Infrared light has longer wavelengths compared to ultraviolet light. Infrared light ranges from about 700 nm to 1 mm, while ultraviolet light ranges from about 10 nm to 400 nm. Ultraviolet light has higher energy and shorter wavelengths than infrared light.
Humans can see light with wavelengths ranging from about 400 to 700 nanometers. This corresponds to the colors of the visible spectrum: violet, blue, green, yellow, orange, and red. Wavelengths shorter than 400 nm (ultraviolet) and longer than 700 nm (infrared) are invisible to the human eye.
Visible light falls between the wavelengths of 380 nm and 760 nm in the electromagnetic spectrum.
Roughly, the spectrum wavelengths are the speed of light divided by the frequency, c/f; 300M/400T=.75 micrometers for Red and 300M/800T=.375 micrometers for Violet..These wavelengths are expressed usually as 750 nanometers and 375 Nanometers.
The colors of the rainbow and their corresponding wavelengths are: Red: 620-750 nm Orange: 590-620 nm Yellow: 570-590 nm Green: 495-570 nm Blue: 450-495 nm Indigo: 420-450 nm Violet: 380-420 nm
The wavelength of ultraviolet waves is shorter than the wavelength of infrared waves. Ultraviolet waves have wavelengths ranging from 10 nm to 400 nm, while infrared waves have wavelengths ranging from 700 nm to 1 mm.