Go Back   Science Forums Biology Forum Molecular Biology Forum Physics Chemistry Forum > General Science Forums > Physics Forum
Register Search Today's Posts Mark Forums Read

Physics Forum Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.

Newbie Questions . . .

Newbie Questions . . . - Physics Forum

Newbie Questions . . . - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.

LinkBack Thread Tools Display Modes
Old 09-16-2004, 04:38 PM
thomas guild
Posts: n/a
Default Newbie Questions . . .

"Richard" <[Only registered users see links. ]> wrote in message
news:ci7s7i$4i0$[Only registered users see links. ]...


Here's my twopence worth; more a general point than a specific answer to
your questions.
The propagation of light exhibits many of the attributes of classical
wave-like behaviour: It has a velocity, a frequency, a wavelength, displays
interference effects...etc . However, It differs from a classical wave in
that it's energy exists in discrete 'lumps' rather than being continuous.
This means that energy can only be added to (or removed from) the wave in
multiples of 'hf'. We call these lumps of energy 'photons'. Any attempt to
'visualise' photons as anything more than bundles of energy isn't worth the
effort because it isn't possible.
One of your points concerned polarising filters. A single photon has a 50%
chance of transmission, but not because there's a 50% chance of perfect
alignment with the filter's axis; obviously the probability of that is
extremely small. A photon which is out of alignment has a finite
probability of transmission, with that probability decreasing from 1 to 0 as
the angular separation increases from 0 to 90 degrees.


Reply With Quote

newbie , questions

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
2 questions from a newbie Anais1979 SDS-PAGE Gel Electrophoresis Forum 2 09-06-2009 05:43 PM
Newbie Questions p_u_c_k_o@yahoo.com Protocols and Methods Forum 2 06-10-2005 09:59 PM
Newbie Questions . . . Bill Rowe Physics Forum 1 09-16-2004 01:34 AM
Newbie Questions . . . Martin Hogbin Physics Forum 0 09-15-2004 05:51 PM
atom questions from newbie Krag Physics Forum 5 10-30-2003 06:16 AM

All times are GMT. The time now is 12:58 PM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright 2005 - 2012 Molecular Station | All Rights Reserved
Page generated in 0.11426 seconds with 16 queries