 | |
you pay no sales tax | |
| ||||||
|
|
||||||||||||||||||||||||||||||||||||||||||
| Precision Fresnel Biprism Interference Apparatus Item number PFB001. Regularly stocked item. Usually ships within 3 to 5 business days. United Scientific |
|
| |||||||||||||||||||||||||||||||
Fresnel's Biprism Experiment is the fundamental example of common path interference by division of wavefront. Light from a slit passes through side-by-side prisms with very shallow angles to separate it into two almost parallel beams. When these beams are brought to overlapping by a convex lens, they interact as if they originated from two virtual sources side by side and generate equally-spaced fringes. The original version of the experiment by Fresnel is difficult to perform because it requires precise adjustment of the slit and prisms, a dark room and a large amount of space to separate the fringes for easy viewing. This apparatus features precision optics which allow fringe position measurements to 1/100mm and grants easy alignment and adjustment of the two virtual light sources. |
| Amperes Rule Apparatus This apparatus allows stu... grades 8 to 12 more |
save 50% $52.05 
|
| Archimedes Principle Apparatus Consists of solid metal c... grades 8 to 12 more |
save 50% $11.55
|
| Ball and Ring Apparatus All brass construction, w... grades 8 to 12 more |
save 50% $11.55
|
| Convection Of Gases Apparatus This apparatus consists o... grades 8 to 12 more |
save 50% $25.55
|