Question

The Fourier transform of a linear response function gives a “generalized” form of this quantity whose imaginary and real parts are related by the Kramers–Krönig relations. This quantity’s magnetic form can be measured with a torsional balance named for Evans. In ferromagnetic crystals, this quantity is a tensor of the partial derivatives of the i-th component of M with respect to the j-th component of H. The temperature dependence of this quantity above the Curie temperature is described by the (*) Curie-Weiss law. This quantity's “electric” form is the constant of proportionality between a material’s polarization and the external E-field, and equals the dielectric constant minus one. (10[1])For 10 points, name this quantity symbolized chi that describes a material’s response to external electric or magnetic (-5[1])fields. (10[1])■END■ (0[11])

ANSWER: susceptibility [accept magnetic susceptibility or electric susceptibility; accept chi until read; accept volume, mass, molar, or differential susceptibility; accept generalized susceptibility or AC susceptibility; reject “x” or “chi-squared”]
<BW, Physics>
= Average correct buzz position

Back to tossups

Buzzes

PlayerTeamOpponentBuzz PositionValue
Yrwin BatanMITTufts A10510
Derek FinoClark HouseBrandeis A123-5
Richard LinAmherstBoston College A12410
Jenna LamBowdoin CBU1250
Shining SunBoston College BClark Wilson1250
Nathaniel MartinBrandeis BHarvard1250
Riley RoesslerBowdoin BBowdoin A1250
Peter ScullyTufts BYale1250
Joy AnHarvardBrandeis B1250
Will PulvinoClark WilsonBoston College B1250
Dash RumbleBowdoin ABowdoin B1250
Andres CordobaYaleTufts B1250
Christopher DechBrandeis AClark House1250
Ben FleishmanBUBowdoin C1250