The eVBL demonstrates, in real time, Thomas Young's classic double-slit diffraction experiment. The experiment has been designed for use in the VCE Physics Unit 4, Study Area 2: Interactions of Light and Matter. It also provides a link to the optional Detailed Study 3.1: Synchrotron and Its Applications.

The eVBL is applicable to any program of study looking at the Thomas Young double-slit experiment, diffraction principles or to examine the wave nature of light.

The source is the optical light produced by the Australian Synchrotron or laser light.

Teachers can book and login to a session to access motor control of the synchrotron beamline and the diffraction slits. Students can access a 'view only mode' for ease of interaction in the session. During the session, the teacher has exclusive control of the experiment and can remotely control and change variables within the experimental setup.

The eVBL uses the Australian Synchrotron Optical Diagnostic Beamline, normally used by the Australian Synchrotron's accelerator physicists to monitor the synchrotron machine during operation.

To access the eVBL, go to https://vbl.synchrotron.org.au/BeamLineAccess/eVBL/

Teachers' notes and a step-by-step guide to demonstrating the experiment in class are available within the eVBL link.