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different colours radiate different frequencies
and different photons.is it true?

2006-07-21 18:13:50 · 7 answers · asked by rajesh bhowmick 2 in Science & Mathematics Physics

7 answers

Photons differ in frequencies. Hih frequency means high energy.

The color is the sensation in our eye. Photons are energy particles and are invisible to human eye.

When they fall on the cones in the retina of our eye, our brain percives the color.

Different frequencies produce different sensation and hence different colors.

2006-07-22 00:39:19 · answer #1 · answered by Pearlsawme 7 · 0 1

Different colors result from different frequencies (or wavelengths) of light.

The visible spectrum of light is from about 400 nanometers (violet) to about 700 nanometers (red) in wavelength.

A photon is just the particle nature of light. A photon carries a very specific amount of energy. The amount of energy a photon carries is dependent upon the frequency of the light.
E = hv
where E is the energy in the photon, h is plank's constant, and v is the frequency of the light.
You can see that higher frequency photons (i.e. lower wavelengths of light) carry more energy.

Different colors of light are caused by the different frequencies/wavelengths of the light whose photons in turn carry different amounts of energy.

2006-07-21 18:21:31 · answer #2 · answered by mrjeffy321 7 · 0 0

No, all forms of light (and color) are generated by the same photons. And because all light travels at the same speed of C, this means that different colors would be differentiated by different frequencies and wavelengths in the behavior of each photon. (red light is cause by less frequency and longer wavelengths while purple is caused by shorter wavelengths and greater frequencies)

2006-07-21 18:17:58 · answer #3 · answered by cptbirdman 2 · 0 0

Different colors (or rather, hues) are related to different frequencies of light.

Photons can carry different amounts of energy.The energy is directly proportional to their frequency, through Planck's formula

E = h . f

Here h = 6.6*10^(-34) J s,
or 4.1*10^(-15) eV / Hz.

For instance, a green photon with frequency 700 GHz (7*10^14 Hz) has energy

E = 4.1*10^(-15) * 7*10^14 = 2.87 eV

2006-07-21 18:32:19 · answer #4 · answered by dutch_prof 4 · 0 0

different colors occur because of different frequencies of light. Photons don't change, they're just light, and light itself is white until changed, then the photons move at different frequencies causing colors.

2006-07-21 18:15:32 · answer #5 · answered by Archangel 4 · 0 0

surfaces absorbs some frequency of light and emits certain frequency of light, the frequency of which light is emitted is the colour of tha surface.


Photons are packets of energy which emitted when exited state of electron comes back to original state in an atom.

2006-07-21 18:23:02 · answer #6 · answered by Anonymous · 0 0

NO..Photons are just COLORLESS....they are just excited fundamental particles......but YES Photons excited in different freuencies generae different colors....this is just applicable to Visible Spectrum of light.

2006-07-21 18:50:15 · answer #7 · answered by Sikandar 2 · 0 0

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