Week-by-Week Schedule for Remainder of Year

Key dates in red

•Week of April 21: NCSSM Online Spring Break•Week of April 28: Complete Chs. 31 and 32•Week of May 5: Lab kit due back to NCSSM on May 5 (Don’t send it until after you’ve done the associated assignment, L99.); Final prep for AP Physics B exam during the week•Week of May 12: AP Physics B exam on Monday; Complete Ch. 29 remainder of the week•Week of May 19: Final exam on Wednesday, May 21•End-of-course survey: To be announced

Laser wavelength measurements from L19

Class2014 2013630 621670 690600 576637 719588 655628 640657 647600 630600 620673 700850 663

  610  636  655  616

Averages 648 645Stan. Dev. 73 37

L19C. Intensity graphs

The double slit shows equally-spaced peaks with approximately equal intensity, although gradual fall-off in intensity from the central peak may be shown.

The multiple slit shows peaks with the same spacing as the double slit since the slit separation was the same. However, the peaks are much sharper.

The single slit shows broad peaks with a great fall-off in intensity from the central maximum. The first minima on either side of the central peak coincide with the m = +/- 1 lines of the double- and multiple-slit graphs.