Advanced Placement / Physics

Interference and Diffraction

In this lab, students shine laser light through a double-slit aperture onto paper, measure the distances between the maxima of the resulting interference pattern, and use the principles associated with double-slit interference and diffraction to determine the spacing between the slits.

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Student Files

08_Interference_and_Diffraction_013-14885A-CS.cap 9.27 KB
08_AP2_Interference_and_Diffraction_S.docx 538.02 KB
08_AP2_Interference_and_Diffraction_S.pdf 729.17 KB
08_Interference_and_Diffraction_013-14885A-SV.spk2 5.41 KB

Standards Correlations

IB Topics AP Topics
4.4; 9.2; 9.3 6.C.3.1

Featured Equipment

Diffraction Plate

Diffraction Plate

A diffraction plate with 10 different apertures.

Wireless Diffraction System with Track

Wireless Diffraction System with Track

Wireless Diffraction System - complete with Diffraction Scanner, Laser, Slits, and Optics Bench.

Many lab activities can be conducted with our Wireless, PASPORT, or even ScienceWorkshop sensors and equipment. For assistance with substituting compatible instruments, contact PASCO Technical Support. We're here to help.

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Source: Lab #08

Advanced Physics Through Inquiry 2

Interference and Diffraction