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Wave Interference Lab

Where waves add and cancel

Two ripple sources build stable bright and dark lines; watch the exact double-slit pattern and its fringe spacing Δy = λL/d change live.

Scored investigations

Playing with a simulation is not the same as earning a point. These take your own measurements from this lab into a real AP free response, graded against the rubric.

Verify the path-difference condition at a bright and a dark fringe

Unit 6 · Interference and physical optics · Quantitative reasoning · 6 pts

Explain how wavelength, distance, and slit spacing set fringe spacing

Unit 6 · Geometric and physical optics · Quantitative reasoning · 6 pts

Booting the lab…