Quick Answer: The Diaphragm with 2 Slits is an optics accessory with a two-slit aperture, mounted in a holder or frame, for double-slit interference and diffraction work on an optical bench.
Last updated: October 2026
Key Features
Two-slit diaphragm for controlled light passage
Supplied with a mounting frame or holder
Used with a laser source, ray box, optical bench and screen
Supplied with an instruction sheet
Technical Specifications
Specification
Value
Aperture type
Two-slit diaphragm
Number of slits
2 slits
Included components
Diaphragm with 2 slits, holder/frame, instruction sheet
About This Product
Mounted in the light path with a screen placed beyond it, the diaphragm produces bright and dark bands that show the wave nature of light. Students vary the screen distance and compare the pattern with double-slit theory in senior school and college optics. Enquiries from New Zealand, Mexico, Vietnam, Tajikistan and Kyrgyzstan for the Diaphragm with 2 slits receive an export quotation.
Frequently Asked Questions
How is the Diaphragm with 2 Slits used?
Mount it in the light path on a holder, align the light source so the beam passes evenly through both slits, and observe the bands on a screen.
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