Wave Number of Electromagnetic Wave Solution

STEP 0: Pre-Calculation Summary
Formula Used
Wave Number = 1/Wavelength of Light Wave
k = 1/λlightwave
This formula uses 2 Variables
Variables Used
Wave Number - Wave Number is the spatial frequency of a wave, measured in cycles per unit distance or radians per unit distance.
Wavelength of Light Wave - (Measured in Meter) - Wavelength of Light Wave is the distance between the two successive crests or troughs of the light wave.
STEP 1: Convert Input(s) to Base Unit
Wavelength of Light Wave: 21 Meter --> 21 Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
k = 1/λlightwave --> 1/21
Evaluating ... ...
k = 0.0476190476190476
STEP 3: Convert Result to Output's Unit
0.0476190476190476 --> No Conversion Required
FINAL ANSWER
0.0476190476190476 0.047619 <-- Wave Number
(Calculation completed in 00.004 seconds)

Credits

Created by Akshada Kulkarni
National Institute of Information Technology (NIIT), Neemrana
Akshada Kulkarni has created this Calculator and 500+ more calculators!
Verified by Suman Ray Pramanik
Indian Institute of Technology (IIT), Kanpur
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25 Structure of Atom Calculators

Bragg equation for Wavelength of Atoms in Crystal Lattice
Go Wavelength of X-ray = 2*Interplanar Spacing of Crystal*(sin(Bragg's Angle of Crystal))/Order of Diffraction
Bragg Equation for Distance between Planes of Atoms in Crystal Lattice
Go Interplanar Spacing in nm = (Order of Diffraction*Wavelength of X-ray)/(2*sin(Bragg's Angle of Crystal))
Bragg Equation for Order of Diffraction of Atoms in Crystal Lattice
Go Order of Diffraction = (2*Interplanar Spacing in nm*sin(Bragg's Angle of Crystal))/Wavelength of X-ray
Mass of Moving Electron
Go Mass of Moving Electron = Rest Mass of Electron/sqrt(1-((Velocity of Electron/[c])^2))
Electrostatic Force between Nucleus and Electron
Go Force between n and e = ([Coulomb]*Atomic Number*([Charge-e]^2))/(Radius of Orbit^2)
Energy of Stationary States
Go Energy of Stationary States = [Rydberg]*((Atomic Number^2)/(Quantum Number^2))
Radii of Stationary States
Go Radii of Stationary States = [Bohr-r]*((Quantum Number^2)/Atomic Number)
Radius of Orbit given Time Period of Electron
Go Radius of Orbit = (Time Period of Electron*Velocity of Electron)/(2*pi)
Time Period of Revolution of Electron
Go Time Period of Electron = (2*pi*Radius of Orbit)/Velocity of Electron
Orbital Frequency given Velocity of Electron
Go Frequency using Energy = Velocity of Electron/(2*pi*Radius of Orbit)
Total Energy in Electron Volts
Go Kinetic Energy of Photon = (6.8/(6.241506363094*10^(18)))*(Atomic Number)^2/(Quantum Number)^2
Energy in Electron Volts
Go Kinetic Energy of Photon = (6.8/(6.241506363094*10^(18)))*(Atomic Number)^2/(Quantum Number)^2
Kinetic Energy in Electron Volts
Go Energy of an Atom = -(13.6/(6.241506363094*10^(18)))*(Atomic Number)^2/(Quantum Number)^2
Radius of Orbit given Potential Energy of Electron
Go Radius of Orbit = (-(Atomic Number*([Charge-e]^2))/Potential Energy of Electron)
Energy of Electron
Go Kinetic Energy of Photon = 1.085*10^-18*(Atomic Number)^2/(Quantum Number)^2
Wave Number of Moving Particle
Go Wave Number = Energy of Atom/([hP]*[c])
Kinetic Energy of Electron
Go Energy of Atom = -2.178*10^(-18)*(Atomic Number)^2/(Quantum Number)^2
Radius of Orbit given Total Energy of Electron
Go Radius of Orbit = (-(Atomic Number*([Charge-e]^2))/(2*Total Energy))
Radius of Orbit given Kinetic Energy of Electron
Go Radius of Orbit = (Atomic Number*([Charge-e]^2))/(2*Kinetic Energy)
Angular Velocity of Electron
Go Angular Velocity Electron = Velocity of Electron/Radius of Orbit
Mass Number
Go Mass Number = Number of Protons+Number of Neutrons
Electric Charge
Go Electric Charge = Number of Electron*[Charge-e]
Number of Neutrons
Go Number of Neutrons = Mass Number-Atomic Number
Specific Charge
Go Specific Charge = Charge/[Mass-e]
Wave Number of Electromagnetic Wave
Go Wave Number = 1/Wavelength of Light Wave

Wave Number of Electromagnetic Wave Formula

Wave Number = 1/Wavelength of Light Wave
k = 1/λlightwave

What is wave number?

Wavenumber is sometimes called the "spectroscopic wavenumber". It is the reciprocal of the wavelength, λ, or the number of waves per unit length along the direction of propagation. The SI unit is per meter (m^−1), but a commonly used unit is per centimeter (cm^−1).

How to Calculate Wave Number of Electromagnetic Wave?

Wave Number of Electromagnetic Wave calculator uses Wave Number = 1/Wavelength of Light Wave to calculate the Wave Number, The Wave number of electromagnetic wave in most chemistry fields is defined as the number of wavelengths per unit distance. Wave Number is denoted by k symbol.

How to calculate Wave Number of Electromagnetic Wave using this online calculator? To use this online calculator for Wave Number of Electromagnetic Wave, enter Wavelength of Light Wave lightwave) and hit the calculate button. Here is how the Wave Number of Electromagnetic Wave calculation can be explained with given input values -> 0.047619 = 1/21.

FAQ

What is Wave Number of Electromagnetic Wave?
The Wave number of electromagnetic wave in most chemistry fields is defined as the number of wavelengths per unit distance and is represented as k = 1/λlightwave or Wave Number = 1/Wavelength of Light Wave. Wavelength of Light Wave is the distance between the two successive crests or troughs of the light wave.
How to calculate Wave Number of Electromagnetic Wave?
The Wave number of electromagnetic wave in most chemistry fields is defined as the number of wavelengths per unit distance is calculated using Wave Number = 1/Wavelength of Light Wave. To calculate Wave Number of Electromagnetic Wave, you need Wavelength of Light Wave lightwave). With our tool, you need to enter the respective value for Wavelength of Light Wave and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Wave Number?
In this formula, Wave Number uses Wavelength of Light Wave. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Wave Number = Energy of Atom/([hP]*[c])
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