A photon of violet light has higher energy than a photon of yellow light. This is because violet light has a higher frequency and shorter wavelength compared to yellow light. The energy of a photon is directly proportional to its frequency, according to the equation E=hf, where E is energy, h is Planck's constant, and f is frequency.
The violet light has more energy than the red light. Red light is lower on the electromagnetic spectrum, meaning it has a lower frequency (or longer wavelength). You'll recall the colors of the rainbow as red, orange, yellow, etc., and these are the colors going up the frequency spectrum. Photons higher on the spectrum are higher in frequency and energy.
The energy of one photon in yellow light depends on the specific shade of yellow, as it corresponds to a range of wavelengths. Generally, for yellow light with a wavelength around 580 nanometers, the energy of one photon is approximately 2.14 electronvolts.
The longest wavelengths of light are the lowest frequencies (and the lowest energy and the longest period, too). These are the reds, and moving up the spectrum, we encounter orange, yellow, green, blue and violet. The violet light has the shortest wavelength (highest frequency), and the highest energy. The infrared (IR) is below the red (longer wavelength and lower frequency), and the ultraviolet (UV) is above the violet (shorter wavelength and higher frequency).
In case of visible spectrum, violet has got least wavelength and hence highest frequency. The energy of light photon is given by the expression E = h nu where nu is the frequency. Hence violet has got maximum energy per photon. That is why, in case ordinary oven, where we use fire wood, the flame colour would be yellow or orange. That means the heat content will be less. But in case of kerosene stove or gas stove using the proper design of the burner, the colour of the flame would be blue or violet. Hence the heat content becomes more and cooking is done in shorter duration.
(least) Red Orange Yellow Green Blue Indigo Violet (most)
A photon of yellow light has lower frequency that a photon of violet light. Remember that light can be considered both as particles (photons) and as waves. So when saying a photon has higher frequencie, its actually the wave part of the light that has a higher frequency.
... greater wavelength, lower frequency, less energy per photon.
The violet light has more energy than the red light. Red light is lower on the electromagnetic spectrum, meaning it has a lower frequency (or longer wavelength). You'll recall the colors of the rainbow as red, orange, yellow, etc., and these are the colors going up the frequency spectrum. Photons higher on the spectrum are higher in frequency and energy.
The energy of one photon in yellow light depends on the specific shade of yellow, as it corresponds to a range of wavelengths. Generally, for yellow light with a wavelength around 580 nanometers, the energy of one photon is approximately 2.14 electronvolts.
Violet light has greater energy because it has higher frequency than yellow light
The longest wavelengths of light are the lowest frequencies (and the lowest energy and the longest period, too). These are the reds, and moving up the spectrum, we encounter orange, yellow, green, blue and violet. The violet light has the shortest wavelength (highest frequency), and the highest energy. The infrared (IR) is below the red (longer wavelength and lower frequency), and the ultraviolet (UV) is above the violet (shorter wavelength and higher frequency).
In case of visible spectrum, violet has got least wavelength and hence highest frequency. The energy of light photon is given by the expression E = h nu where nu is the frequency. Hence violet has got maximum energy per photon. That is why, in case ordinary oven, where we use fire wood, the flame colour would be yellow or orange. That means the heat content will be less. But in case of kerosene stove or gas stove using the proper design of the burner, the colour of the flame would be blue or violet. Hence the heat content becomes more and cooking is done in shorter duration.
(least) Red Orange Yellow Green Blue Indigo Violet (most)
The energy of a photon can be calculated using the formula: E = hf, where E is the energy, h is Planck's constant (6.626 x 10^-34 J s), and f is the frequency. Plugging in the values, the energy of a photon of yellow light with a frequency of 5.45 x 10^14 Hz would be approximately 3.6 x 10^-19 Joules.
The colors of the rainbow in order of increasing energy are red, orange, yellow, green, blue, indigo, and violet. This spectrum represents the different wavelengths of visible light, with red having the longest wavelength and lowest energy, and violet having the shortest wavelength and highest energy.
Red Orange Yellow Green Blue Indigo Violet. From lowest to highest energy.
The visible light with the highest frequency (shortest wavelength) carries the most energy. That means it is the light at the violet end of the 'rainbow'. Since the wavelength of violet light is very roughly half the wavelength of red light, a beam of violet light carries roughly double the energy of a beam of red light with equal intensity. In the particle world, a violet photon has double the energy (and double the momentum) of a red photon. We know from (E=H times nu) that energy is directly proportional to the frequency.