PY208N-Lecture-33

PY208N-Lecture-33 - 1 The electric fields at the point P...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 The electric fields at the point P from the two slits are given by where . Physics 208N-004 Lecture #33 11 April 2011 Chapter 34: 5 Light Waves and Interference 34-4 Intensity in the Double-Slit Interference Pattern The time-averaged intensity is proportional to the square of the field: 2 34-4 Intensity in the Double-Slit Interference Pattern This plot shows the intensity as a function of angle. Another way path lengths can differ, and waves interfere, is if they travel through different media. If there is a very thin film of material a few wavelengths thick light will reflect from both the bottom and the top of the layer, causing interference. This can be seen in soap bubbles and oil slicks. 34-5 Interference in Thin Films 3 The wavelength of the light will be different in the oil and the air, and the reflections at points A and B may or may not involve phase changes. 34-5 Interference in Thin Films A similar effect takes place when a shallowly curved piece of glass is placed on a flat one. When viewed piece of glass is placed on a flat one....
View Full Document

This note was uploaded on 09/18/2011 for the course PY 208M 87878 taught by Professor George during the Spring '09 term at N.C. State.

Page1 / 8

PY208N-Lecture-33 - 1 The electric fields at the point P...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online