This preview shows page 1. Sign up to view the full content.
Unformatted text preview: Physics 241 Quiz 22c April 17, 2008 Light of wavelength in air is incident normal to a thin layer of oil film floating on water as shown. If the reflection is bright (constructive interference) by interference of rays 1 and 2, what is a possible thickness d of the oil film?
1 2 Phase change by a) /(4n1) b) /4 c) /(2n1) d) /2 e) 3/4
No phase change 1 = m + / n1 2 oil (n1>1.33) water (n=1.33) 2d = mglass ...
View Full Document
This note was uploaded on 07/29/2008 for the course PHYS 241 taught by Professor Wei during the Spring '08 term at Purdue University.
- Spring '08