What are the 7 colors of the electromagnetic spectrum?
What are the 7 colors of the electromagnetic spectrum?
Visible light travels at a speed of 300,000 km per second and can be broken down into seven colors. From longest to shortest wavelength, they are: red, orange, yellow, green, blue, indigo, and violet. To be clear, color is the eye’s perception of different wavelengths of electromagnetic light.
What color has the most energy on the electromagnetic spectrum?
Violet waves
Violet waves have the most energy of the visible spectrum.
What are the colors of the electromagnetic spectrum in order?
Dispersion of visible light produces the colors red (R), orange (O), yellow (Y), green (G), blue (B), and violet (V). It is because of this that visible light is sometimes referred to as ROY G. BIV.
What are the main colors visible in the spectrum?
The visible spectrum
| colour* | wavelength (nm) | energy (eV) |
|---|---|---|
| red | 650 | 1.91 |
| orange | 600 | 2.06 |
| yellow | 580 | 2.14 |
| green | 550 | 2.25 |
What are the 12 colors of the spectrum called?
What are the 12 colors of the spectrum called? The division used by Isaac Newton, in his color wheel, was: red, orange, yellow, green, blue, indigo and violet; a mnemonic for this order is “Roy G. Biv”. Less commonly, “VIBGYOR” is also used for the reverse order.
When do we detect colors in the visible spectrum?
We only detect colors when one or more of the wavelengths in the visible spectrum have been absorbed, and thus removed, by interaction with some chemical species (see an animation of this here.) When the wavelengths of one or more colors is absorbed, it is the colors on the opposite side of the color wheel that are transmitted. Example:
What are the energies of photons in the electromagnetic spectrum?
Instead of using wavelengths, astronomers that study these portions of the EM spectrum usually refer to these photons by their energies, measured in electron volts (eV). Ultraviolet radiation falls in the range from a few electron volts to about 100 eV. X-ray photons have energies in the range 100 eV to 100,000 eV (or 100 keV).
Which is the smallest part of the electromagnetic spectrum?
The wavelengths of ultraviolet, X-ray, and gamma-ray regions of the EM spectrum are very small. Instead of using wavelengths, astronomers that study these portions of the EM spectrum usually refer to these photons by their energies, measured in electron volts (eV).
How many nanometers are there in the electromagnetic spectrum?
Optical astronomers use both angstroms (0.00000001 cm, or 10 -8 cm) and nanometers (0.0000001 cm, or 10 -7 cm ). Using nanometers, violet, blue, green, yellow, orange, and red light have wavelengths between 400 and 700 nanometers.
https://www.youtube.com/watch?v=m4t7gTmBK3g