violet

The visible spectrum

A commonly taught acronym that helps people remember the colors in the visible spectrum is ROY G BIV which stands for Red, Orange, Yellow, Green, Blue, Indigo, and Violet.

Violet waves

Red, green, and blue are known as the primary colors of light. The combinations of two of the three primary colors of light produce the secondary colors of light. The secondary colors of light are cyan, magenta, and yellow. In printing, the abbreviation for cyan is C, magenta is M, and yellow is Y.

The visible light portion of the electromagnetic spectrum shows the rainbow of colors, with violet and blue having shorter wavelengths, and therefore higher energy.

In Feng Shui, yellow is the centre of everything, comparable with the Sun which is the ultimate source of positive energy. You can use this colour in any room as this colour has the power of adaptability, flexibility, clarity, etc.

coz red can redect energy more than yellow .

So, higher the frequency, higher the energy. Hence, green light has more energy than red light.

Waves with a short wavelength have the most energy. Red waves have a relatively long wavelength (in the 700 nm range), and violet waves are much shorter – roughly half that. Because violet waves have the shortest wavelength of the visible light spectrum, they carry the most energy.

– Hence, the light having the lowest wavelength will have maximum energy. – On the basis of wavelength, red has the maximum wavelength, then green, then comes blue and lastly violet.

The energy of a photon depends on its wavelength: longer wavelength photons have less energy and shorter wavelength photons have more. Red photons, for example, have less energy than blue ones.

Blue light has a higher frequency and carries more energy than red light. The wavelengths of light waves are very, very short, just a few 1/100,000ths of an inch.

According to Quantum Theory of light proposed by Einstein, energy of a photon is equal to the product of planck’s constant and frequency i.e. So when we double the wavelength, the energy becomes half.

Halving the wavelength doubles the frequency and, thus, doubles the energy of the incident photons.

Hence, if the wavelength is doubled, the energy of photon will be half.

: the minimum frequency of radiation that will produce a photoelectric effect.

The photoelectric threshold frequency, symbolized by the Greek letter nu with subscript zero, ν0, is that frequency at which the effect is barely possible; it is given by the ratio of the work function symbolized by the Greek letter psi, ψ, to Planck’s constant (ν0 =…

Threshold frequency in photoelectric effect is the minimum frequency of electromagnetic radiation which is required for the phenomenon of photoelectric emission to occur from a metal surface. The formula of threshold frequency is W= hv0.

At zero stopping potential the frequency of incident radiation is more to metal A. Both the metals have the same stopping potential at different frequencies and this frequency is more than metal A. So, metal A has a higher threshold frequency. Thus, metal A has high threshold frequency.

The threshold frequency of a metal refers to the frequency of light that will cause an electron to dislodge from that metal. Light below a metal’s threshold frequency will not eject an electron. Light at the threshold frequency will dislodge the electron with no kinetic energy.

Question: The photoelectric threshold frequency for Gold is 1-233 X 10^15 hertz.

Threshold frequency v0 is the minimum frequency which a photon must possess to eject and electron from a metal. It is different for different metals. When a photon of frequency 1.

This minimum frequency is also called the threshold frequency, and the value of ν0​/nu, start subscript, 0, end subscript depends on the metal. For frequencies greater than ν0​/nu, start subscript, 0, end subscript, electrons would be ejected from the metal.

Colors of light that correspond to narrow wavelength bands (monochromatic light) are the pure spectral colors learned using the ROYGBIV acronym: red, orange, yellow, green, blue, indigo, and violet.

According to the dominant Hering opponent color framework, the hues red, green, blue, and yellow are distinctive and fundamental to all hue perception, in part due to the fact that they admit of pure or unique variants and all other hues (such as orange) appear as mixtures of them.

Hue

The purest form of a color, with no added black, gray, white, or the color’s complement. What we call ‘crayon’ colors or ‘rainbow’ colors usually fall in this category, though not all do.

Value refers to the lightness or darkness of a color. A light color is a tint. For example, pink is a tint of red. A dark color is called a shade.

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Black

White is the lightest possible color.

Is black the absence of color? In science, black is the absence of light. And color is a phenomenon of light. But a black object or black images printed on white paper are made from pigment, not light.

Here’s a simple way to show how black is made: Combine all three primary colors (red yellow and blue) using a liquid paint or you even food coloring. You won’t get a jet black, but the point will be clear. The history of black pigments includes charcoal, iron metals, and other chemicals as the source of black paints.

Midnight blue is darker than navy blue and is generally considered to be the deepest shade of blue, one so dark that it might be mistaken for black. Navy blue is a comparatively lighter hue.

Creating shades of black color with primary colors Red, blue and yellow are the three primary colors for what colors make black paint when mixed together. Simply mix equal amounts of red, blue, and yellow together and you will get a nice black.

You can create brown from the primary colors red, yellow, and blue . Since red and yellow make orange, you can also make brown by mixing blue and orange. The RGB model used for creating color on screens like the television or a computer uses red and green to make brown.

The primary colors of light are red, green, and blue. If you subtract these from white you get cyan, magenta, and yellow. Mixing the colors generates new colors as shown on the color wheel, or the circle on the right. Mixing these three primary colors generates black.

The colors you will need are red, yellow, and blue in equal proportions. Mix these three colors, and then you can use either white or a little more yellow to lighten the color. The lighter the skin tone you want, the more white you will add. To make the skin tone appear more blush, you can add a little more red paint.

Primary colors cannot be mixed by the user The three basic colors, also called primary colors, cannot be created by mixing other colors. These primary colors are red, blue and yellow.

Primary Yellow, Primary Red and Primary Blue are considered the root of every other color. They are colors that can’t be created by a mixture. The Secondary colors are Orange, Purple and Green. Tertiary colors are the six ‘in-between’ colors.