550 5.45

Red

red

When white light is spread apart by a prism or a diffraction grating, the colours of the visible spectrum appear. The colours vary according to their wavelengths. Violet has the highest frequencies and shortest wavelengths, and red has the lowest frequencies and the longest wavelengths.

It has frequencies of about 4 × 1014 to 8 × 1014 cycles per second, or hertz (Hz) and wavelengths of about 740 nanometers (nm) or 2.9 × 10−5 inches, to 380 nm (1.5 × 10−5 inches).

violet

Each of the component lights has distinct frequency ranging from one value to another. So, when the photons have wavelength of 600 nm it becomes a yellow light and when it changes to 700 nm it becomes a red light.

A prism is a device that can separate white light into its different colors. When white light goes through a prism, the light bends because the speed of light decreases as it goes from air to the prism. The speed of light depends on the wavelength of the light….Spectrum.

White light can be separated into all seven major colors of the complete spectrum or rainbow by using a diffraction grating or a prism. The diffraction grating separates light into colors as the light passes through the many fine slits of the grating. This is a transmission grating. There are also reflection gratings.

The wavelength, on the other hand, is inversely proportional to energy and frequency. Since it has the highest frequency and shortest wavelength, violet carries the highest energy among ROYGBIV colors.

Radiowave

A prism separates white light into a group of seven colors called a spectrum. These seven colors are always in the same order. The colors of the spectrum are red, orange, yellow, green, blue, indigo, and violet.

Light is a visible form of radiant energy that travels in waves. It is the only form of energy that can be seen by the human eye. Aside from the Sun, light energy is given off by other stars, light bulbs, lasers and hot objects.

More melanin also means better protection from the sun– the pigment in your eyes literally protects your retina. Light eyes such as blue, green or grey are more sensitive in sunlight. Most people are sensitive to sudden light, such as walking out of a dark hallway on a sunny day.

green

Green

Blue light also reaches deeper into the eye, causing damage to the retina. In fact, Blue light can be so detrimental to the eyes, that several medical studies, including a study by Molecular Vision in 2016, have found that it can lead to macular and retinal degenerations.

“For instance, light sages and sky light blues are often associated with spa-inspired rooms. There’s also some scientific research indicating that due to the short wavelengths of cooler colors and how our cones perceive them, greens and blues are the most relaxing to our eyes.

Different wavelengths of light excite different combinations of cones to varying levels, which generates our perception of color. You can see that the red cones are most sensitive to light, and the blue cones are least sensitive. The sensitivity of green and red cones overlaps for most of the visible spectrum.

Dark mode may be a personal preference for some, but it isn’t necessarily better for your eyes. It also isn’t a substitute for better methods to reduce eye strain, DeBroff says. To prevent and treat eye strain, he recommends: Giving your eyes a rest from screens every 20 minutes.