Precision Fresnel Biprism Interference Apparatus

Name: Precision Fresnel Biprism Interference Apparatus
SKU: PCL-UN-PFB001
Rating: 4.8 (72 reviews)

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Perform Fresnel's Biprism Experiment on a 1m optical bench

• Precision optics allow fringe position measurements to 1/100mm

• Easy alignment and adjustment of the two virtual light sources

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SKU	PCL-UN-PFB001

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

Item	Description
PCL-UN-PFB001	Precision Fresnel Biprism Interference Apparatus