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United Scientific™ Precision Fresnel Biprism Interface Apparatus
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Catalog No. S23931 Shop All United Scientific Supplies, Inc Products
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Fresnel Biprism Interface
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S23931 Fresnel Biprism Interface
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Catalog No. S23931 Supplier United Scientific™ Supplier No. PFB001

Description

Precision optics allow fringe position measurements to 1/100 mm. The Precision Fresnel Biprism Interface Apparatus offers easy alignment and adjustment of the two virtual light sources.

  • Perform Fresnel's Biprism Experiment on a 1 m optical bench.
  • Precision optics allow fringe position measurements to 1/100 mm.
  • Easy alignment and adjustment of the two virtual light sources.
  • 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.

Specifications

Product Type Optics Set
Shape Various
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