## Calculating the energy of a photon [ENDORSED]

$c=\lambda v$

Cytlalli 1B
Posts: 23
Joined: Fri Apr 06, 2018 11:02 am

### Calculating the energy of a photon

In example 1.4, question a asks what is the energy of a single photon of blue light of frequency 6.4x10^14 Hz. To solve you use the equation E(1 photon)=hv. We are solving for e and I already know h being the frequency of the blue light but how do I find v? The example shows that you get (6.626x10^-34 J x s) as v and I don't know how they got this answer.

Megan Potter 1G
Posts: 35
Joined: Fri Apr 06, 2018 11:04 am

### Re: Calculating the energy of a photon

h is just Planck's constant which is 6.626x10^-34 and v is your frequency
Last edited by Megan Potter 1G on Tue Apr 17, 2018 6:16 pm, edited 1 time in total.

Lily Emerson 1I
Posts: 27
Joined: Fri Apr 06, 2018 11:02 am

### Re: Calculating the energy of a photon  [ENDORSED]

h=6.626 x 10^-34, which is planck's constant. v is the frequency of blue light, which is the 6.4 x 10^14 that you'd found before