About 1.9 eV. Duane-Hunt relation is E(eV) = 1240/lambda(nm), lambda for red light is 650 nm, so E in eV is about 1.9
Ultraviolet light has higher energy than visible light but lower energy than X-rays. The energy of ultraviolet light ranges from about 3 eV to 124 eV, depending on the specific wavelength.
The photon energy of red light with a wavelength of 640 nm is approximately 1.94 eV (electron volts). This can be calculated using the formula E = hc/λ, where h is Planck's constant, c is the speed of light, and λ is the wavelength of the light.
n = 1 = -340.8 eV n = 2 = - 85.00 eV n = 3 = - 37.78 eV n = 4 = - 21.25 eV n = 5 = - 13.60 eV
Red light has a lower amount of energy than blue light. This is because red light has a longer wavelength, which corresponds to lower energy photons, while blue light has a shorter wavelength and higher energy photons.
Red light has lower energy than yellow light. The energy of a light wave is directly proportional to its frequency, with red light having a lower frequency and therefore lower energy compared to yellow light.
Ultraviolet light has higher energy than visible light but lower energy than X-rays. The energy of ultraviolet light ranges from about 3 eV to 124 eV, depending on the specific wavelength.
X-ray energies in the range 120 eV to 120 keV. UV energies from 3eV to 124 eV.
The photon energy of red light with a wavelength of 640 nm is approximately 1.94 eV (electron volts). This can be calculated using the formula E = hc/λ, where h is Planck's constant, c is the speed of light, and λ is the wavelength of the light.
n = 1 = -340.8 eV n = 2 = - 85.00 eV n = 3 = - 37.78 eV n = 4 = - 21.25 eV n = 5 = - 13.60 eV
Red light has a lower amount of energy than blue light. This is because red light has a longer wavelength, which corresponds to lower energy photons, while blue light has a shorter wavelength and higher energy photons.
Red light has lower energy than yellow light. The energy of a light wave is directly proportional to its frequency, with red light having a lower frequency and therefore lower energy compared to yellow light.
Ultraviolet (UV) light has higher energy than visible light but lower energy than X-rays. It ranges from about 3 electron volts (eV) to 124 eV, with shorter wavelengths corresponding to higher energies. UV light is important for processes like photosynthesis and can cause skin damage if exposure is prolonged.
The energy is hc/w = 1.344E-1 ev
no red uses more energy
Blue light has sufficent energy to liberate electrons, E = hf=( 1ev/240Thz)f. Blue light is around 800 Thz and thus E = 800/240 ev=10/3 ev.
Red
UV light has higher frequency, so it has more energy than red light has