Texas Instruments
9-12
45 Minutes
TI-Nspire™TI-Nspire™ CAS
1.7
Students explore the interference patterns of waves formed by two point sources. Students are able to collect data and draw conclusions about the nodal lines formed by the interference.
Students should open the TNS file and read the first two pages. Page 1.3 shows three sine curves. The thick curve represents the sum of the two dotted curves. The two dotted curves have the same frequency. Students can vary the phase shifts of the two dotted curves by moving the p1 and p2 sliders. Students should vary the phases of the curves and then answer questions 1–3.
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