Question

Is the energy of a photon directly proportional to its wavelength?

Answer 1

the energy E, of a photon is:
\[E=h*\nu \]
where h is the Planck constant, namely h=6.62*10^-27 erg*sec, and v is the frequency of the beam light to belong your photon.
Note that:
\[\nu=\frac{ c }{ \lambda } \]
where c is the light speed, and lambda is the wavelength. Please substitute this last relationship into the formula for the energy of a photon, write your resultant formula, and if it is correct, you will get your answer