國際奧林匹克物理競賽題的分析-資料下載頁

　　

【正文】 a x i sF o r 146717,414 S l o p es q u a r e sl e a s t B y t h e2322222222222lnln232=???==?=???=?==?=?=?===?===? ?????BBRRRBRBBRRnnmmnRYnRXnRRmBB?????? acm02l?=and khcc =2then ?lcamkh 0=Because of 3422223422200223489230590280415?=??????????????????????????????=????????? ???????? ?????????? ???????? ???????? ?=??=??????=haakkmmhhh??ll h = ? 1034 J s ? h = ? 1034 J s 評分標(biāo)準(zhǔn) TASK MARKS TASK 1 points TASK 2 points a) b) c) d) TASK 3 points TASK 4 points a) b) c) d) e) TASK 1. points For each wrong connection. pt TASK 2. points a) pt For temperature value 3 K below or above the room average value pt Right value of t but incorrect T0 pt ?T not given or incorrect value of ?T pt b) 0 pt Data Table pt V and I readings made but RB not puted pt Less than 15 readings below 100 mV. pt Readings between 0 and 100 mV using the scales 2V, 20 V o 200 mA. pt Incorrect number of digits in each of the columns V, I or RB. pt Units or quantities missing in each of the columns. pt More than 30 % of the data points are misaligned (*). pt Graphics pt Improper scale/aspect ratio obscuring data trend (**). pt Units or quantities missing in any of the axes. pt Plot joined by sawtooth. pt c) p Appropriate data range pt Ranges from 0 to110 mV are acceptable. Ranges from 0 to 150 mV. pt Ranges including values beyond 150 mV. pt Fit made with less than 6 points. pt Computation of RB0 and ?RB0 . pt RB0 pt Least squares or equivalent numeric fit. Graphic determination only. pt Missing or incorrect units. pt Incorrect number of digits. pt If 10 ? RB0 13 ? pt ?RB0 pt Least squares or equivalent numeric fit. Graphic determination only. pt Error given without justification. pt RB0 and ?RB0 given with inconsistent number of digits. pt d) pt a value pt For any putational error in the use of RB0 or ?RB0 . pt ?a value pt Appropriate numeric method used. Error given without justification. pt a and ?a given with inconsistent number of digits. pt TASK 3. points l0 pt For 585 nm l0 595 nm . If l0 595 nm or l0 585 nm . pt l0 given with precision better than 1 nm . pt ?l pt For 20 nm ? ?l0 ? 30 nm . For ?l0 20 nm or ?l0 30 nm . pt l0 and ?l0 given with inconsistent number of digits. pt TASK 4. points a) pt 8 or more readings. From 6 to 8 readings. pt Less than 6 readings. pt Readings made with improper scales (200V, 20 A o R scale living too few digits). pt Units or quantities missing in each of the columns. pt Incorrect number of digits in each of V, I or R. pt b) 0 pt R and R’ pt R not the last reading made in the previous question.. pt R’ in the range between R and R R’ R or R’ R . pt ? and ?? pt ? 0 pt ? not puted . pt ? or ? . pt ? given with other than 2 digits. pt ?? 0 pt Computed using methods for indirect measurements or numeric methods. ?y given without justification. pt ? and ?? given with inconsistent number of digits. pt c) pt Missing or wrong equation. pt d) pt Column and values for 1/T missing. pt Column and values for ln R missing. pt Values of T or 1/T inconsistent with equation (6). pt lnR putation is incorrect. pt For each column with incorrect number of digits. pt Fit made with less than 12 points. pt e) pt Graphics pt Improper scale/aspect ratio obscuring data trend. (**) pt Units or quantities missing in any of the axes. pt Plot joined by saw tooth. pt More than 30 % of the data points are misaligned (*). pt h and ?h pt h pt Using least squares fit or equivalent numeric method. Graphically only. pt Missing or incorrect units . pt Incorrect number of digits. pt If h ?1034 Js or h ?1034 Js pt ?h pt Using least squares fit or equivalent numeric method. pt Graphically only. pt ?h given without justification. pt h and ?h given with inconsistent number of digits. pt Misaligned point: | 1 ( ) | 0 . 0 6iiy y x where ()iiy x m x b=?** Improper scale/aspect ratio: ? ?? ? m inm inm a x yyl en g t hxxl en g t hm 醲NOTA BENE: For the case where the solution was obtained by inverse engineering, using the known value of the Planck constant: Each part of the question affected by this procedure will be given points.