Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 48 (1941) > Annual Issue
Document Type
Research
Abstract
Newton's rings produced by a quartz plate and lens in a slit source of light were observed in a low power traveling microscope. The square of the radius of the rings ( r) plotted against the order of the ring ( n) from the center yields a straight line whose intercept on the axis where n = 0 is shown to be a function of the vertical separation of the lens and plate but not a function of the index of refraction of the medium between them nor the angle of incidence of the light. The ring radii were measured with air and with water between the lens and plate. The graphs for the two cases have different intercepts which is interpreted as indicating a rigid water multilayer between the quartz surfaces of the order of 200 AO in thickness.
Publication Date
1941
Journal Title
Proceedings of the Iowa Academy of Science
Volume
48
Issue
1
First Page
275
Last Page
275
Copyright
©1941 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Eversole, W. G. and Lahr, Paul H.
(1941)
"The Thickness of a Rigid Water Layer on Quartz From Measurements of Newton's Rings (Abstracts),"
Proceedings of the Iowa Academy of Science, 48(1), 275-275.
Available at:
https://scholarworks.uni.edu/pias/vol48/iss1/61