What is the frequency in Hz of a photon with a wavelength of 255 nm?
What is the frequency in Hz of a photon with a wavelength of 255 nm?
The wavelength 2.5×10−9m is in the soft X-ray region of the electromagnetic spectrum. The frequency of the 2.5×10−9m wavelength is 1.2×1017Hz .
What is the energy of a 100 nm photon?
12.4 eV
E=hf=hcλ E = h f = h c λ . E=hf=hcλ=1240 eV ⋅ nm100 nm=12.4 eV E = h f = h c λ = 1240 eV ⋅ nm 100 nm = 12.4 eV .
How do you calculate energy from wavelength?
Wavelength is related to energy and frequency by E = hν = hc/λ, where E = energy, h = Planck’s constant, ν = frequency, c = the speed of light, and λ = wavelength.
How do you calculate wavelength in megahertz?
How to calculate wavelength
- Determine the frequency of the wave. For example, f = 10 MHz .
- Choose the velocity of the wave.
- Substitute these values into the wavelength equation λ = v/f .
- Calculate the result.
- You can also use this tool as a frequency calculator.
What is the energy of light with a wavelength of 532 nm?
Therefore, the green laser with 532 nm of light would an energy of 3.74 x 10-19 J for a single photon, and 225.22 kJ for 1 mole of that photon.
How do you calculate wavelength from a wavenumber?
How do you calculate wavelength from wavenumber? 1 Take your wavenumber, noting the units. 2 Divide 1 by the wavenumber. 3 It’s as easy as that! 4 The units for your new wavelength are 1 over the old units, so 1/cm becomes cm.
How do you convert wavelength to joules of energy?
Convert your wavelength into meters. Divide the speed of light, ~300,000,000 m/s, by the wavelength in m. This gives you the wave’s frequency. Multiply the frequency by Planck’s constant, 6.626 x 10 -34. The result is the waves energy in joules (J).
What is the wavelength range of UV light?
UV light covers a wavelength spectrum from 100 to 380 nm and is subdivided into three regions by wavelength: UVA (320 to 400 nm), UVB (280 to 320 nm), and UVC (200 to 280 nm) (1).
How do you calculate the speed of light in a wave?
Choose the velocity of the wave. As a default, our calculator uses a value of 299 792 458 m/s – the speed of light propagating in the air. Substitute these values into the wavelength equation λ = v/f.
