The energy of a photon of light is proportional to its frequency and proportional to its wavelength.

A) directly, directly
B) inversely, inversely
C) inversely, directly
D) directly, inversely
E) indirectly, not

D) directly, inversely

Explanation:

The energy of a photon of light is directly proportional to its frequency and inversely proportional to its wavelength.

Frequency is the number of waves that passes through a point per unit of time.

Wavelength is the is the distance between successive crests or troughs on a wave.

 Mathematically, frequency is related to wavelength and velocity using;

             Energy   =  h x f

                      where h is the Planck's constant

                                  f is the frequency

                   Since c  = f ∧

where f is the frequency of the wave

           ∧ is the wavelength of the wave

           c is the speed of light

So;

                 f  = c/∧

  Therefore;

                E  =

From the equation, we see an inverse relationship between E and wavelength and a direct one with frequency.

and 1and 1