Tossup

This process is caused by devices partially named “echelle,” which have relatively few lines per millimeter. Either prisms or devices named (10[1])for this process are used as dispersive elements in spectrometers. (10[2])The first zero of the Bessel function J-sub-one equals the constant 1.22 in Rayleigh’s criterion for resolution limited by this process. This process’ intensity maxima occur when sine theta is proportional to an integer multiple (10[1])of wavelength by Bragg’s Law. Tightly spaced slits make up gratings named for this process, which light undergoes before self-interfering in the double slit experiment. For 10 points, name this process in which light bends around an object. ■END■

ANSWER: diffraction [accept diffraction gratings; prompt on dispersion before “dispersive” by asking “what causes the dispersion?”]
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= Average correct buzz position

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Buzzes


Summary

TournamentEditionTUHConv. %Neg %Average Buzz
UK (North)UK580%20%66.50
UK (South)UK8100%13%56.13
Northern CaliforniaUS4100%0%36.25
Southern CaliforniaUS7100%0%50.00
Eastern Canada (1)US560%40%65.67
Eastern Canada (2)US9100%22%64.44
FloridaUS475%0%79.33
Great LakesUS1283%17%77.80
Lower Mid-AtlanticUS956%56%79.60
Upper Mid-AtlanticUS250%50%84.00
MidwestUS9100%22%69.44
NorthUS4100%0%71.50
NortheastUS1080%40%78.38
PacificUS7100%0%71.29
SoutheastUS1369%31%57.67
Upstate NYUS5100%0%70.20