Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

The discussion on this webpage mentions that shining a laser beam at a hair produces an effect like that of the double-slit experiment. Does classical physics predict the effect you observe when you do this (since light is a wave)?

share|improve this question
add comment

1 Answer 1

up vote 6 down vote accepted

The fringe pattern of a double slit is entirely classical - it even works with ocean waves.

https://www.meted.ucar.edu/

Why it still works with only one photon, and why it doesn't work if you look at the photon is quantum.

share|improve this answer
    
Even the idea of there being such a thing as a photon is quantum too. –  compman May 15 '12 at 22:35
    
@compman: Quantum ideas? :P –  qubyte May 16 '12 at 6:09
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.