Jump to content

Focusing light


johann

Recommended Posts

I would like to know what happens to light as it focuses through a lens.

If the example of looking at a blue star through a telescope is taken.

 

Would it be correct to say all of the following?

The density of the photons increases

The frequency remains the same

The amplitude of the light increases

 

Thanks in advance for answering my questions

 

regards

Johann

Link to comment
Share on other sites

  • 3 weeks later...
  • 1 month later...

?

 

The photons will be concentrated. What is "density of an individual photon" supposed to mean?

a photon is a particle no?

the individual particles remain the same.

just because there closer together, doesn't change the individual photons.

the overall density goes up but not the density of the individual photons.

Edited by cipher510
Link to comment
Share on other sites

I think saying the density of photons increases is misleading or just incorrect. The intensity increases, which is possibly what you guys mean. In a particle model the energy of each photon stays the same, but the amount coming in increases. In a wave model, the amplitude increases (constructive interference) and the frequency stays the same. That's the way I see it.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.