Mendeleev · science lesson
Photon: linking energy, frequency and wavelength
For a photon, E = hν and c = λν link energy, frequency and wavelength.
Start with the idea
For a photon, E = hν and c = λν link energy, frequency and wavelength.
A concrete example
A shorter wavelength corresponds to a higher frequency and therefore a higher photon energy.
Mendeleev
Mendeleev’s tip
Do not start with a formula. Identify what changes, what stays constant and which quantity you are trying to explain or calculate.
Go one step deeper
A blue-light photon carries more energy than a red-light photon because its frequency is higher.
Common trap
A trend or model is not an exceptionless law. Always check the quantity’s definition and the conditions being compared.
Check your understanding
Can you explain the phenomenon in your own words before looking at an equation?