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Interference at Fresnel’s biprism with an He-Ne laser /
Interference at Fresnel’s biprism with an He-Ne laser

Interference at Fresnel’s biprism with an He-Ne laser

VP5.3.2.3

Fresnel mirror - Lloyd mirror - Biprism (P5.3.2.1-3)

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Description

Coherent light sources can also be produced using a Fresnel biprism, first demonstrated in 1826 (P5.3.2.3). Refraction in both halves of the prism results in two virtual images, which are closer together the smaller the prism angle is.

Components of equipment sets

1	471832	He-Ne laser, unpolarised
1	47109 4	Fresnel biprism
1	46025 8	Prism table
1	46001 4	Lens in frame, f=5 mm
1	46004 4	Lens in frame, f=200 mm
1	46032 8	Optical bench with standardised profile, 1 m
3	460370 8	Optics rider, 60/34
1	460373	Optics rider, 60/50
1	44153 8	Screen, translucent
1	30011 4	Saddle base
1	31153 4	Vernier callipers
1	31178 4	Tape measure 2 m / 1 mm

Experiment Instructions

PDF (Experiment description)

P5.3.2.3 Interference at Fresnels biprism with an He-Ne laser

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Interference at Fresnel’s biprism with an He-Ne laser

Description

Components of equipment sets

Experiment Instructions

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