Planck's law - spectral radiance per wavelength, wikipedia article
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Planck's Law in terms of wavelength
22738
Is the electromagnetic spectrum discrete?
40731
Can a black hole absorb photons whose wavelengths are greater than the BH horizon size?
64508
Where exactly does energy quantisation come in for light?
65422
How did Bohr come up with the figure $n\hbar$?
11602
Validity of naively computing the de Broglie wavelength of a macroscopic object
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How does one account for the momentum of an absorbed photon?
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The energy of an electromagnetic wave
78333
Does the light color spectrum and frequency matter for photosynthesis?
97422
What does 'per unit frequency' refer to?
100972
Can someone explain Planck's constant simply?
130932
Effective Refractive Index
130201
Imaginary number for extinction coefficient in complex refractive index
32447
How to plot an emission spectrum?
141791
What would be the associated wavelength of the particle if its velocity is zero?
13122
Why doesn't the frequency of light change during refraction?
88401
How is the amplitude of light related to number of photons?