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第14章实验13 测量玻璃的折射率_4.2025物理总复习_2024年新高考资料_1.2024一轮复习_2024年高考物理一轮复习讲义(新人教版)_学生版在此文件夹_一轮复习85练

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第14章实验13 测量玻璃的折射率_4.2025物理总复习_2024年新高考资料_1.2024一轮复习_2024年高考物理一轮复习讲义(新人教版)_学生版在此文件夹_一轮复习85练
第14章实验13 测量玻璃的折射率_4.2025物理总复习_2024年新高考资料_1.2024一轮复习_2024年高考物理一轮复习讲义(新人教版)_学生版在此文件夹_一轮复习85练
第14章实验13 测量玻璃的折射率_4.2025物理总复习_2024年新高考资料_1.2024一轮复习_2024年高考物理一轮复习讲义(新人教版)_学生版在此文件夹_一轮复习85练

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1.在“测量玻璃的折射率”实验中,某同学经正确操作后插好了4枚大头针,如图甲所示. (1)下列说法正确的是________; A.入射角越大,误差越小 B.在白纸上放好玻璃砖后,用铅笔贴着光学面画出界面 C.实验时既可用量角器,也可用圆规和直尺等工具进行测量 D.判断像与大头针是否在同一直线时,应该观察大头针的头部 (2)请在图乙中画出完整的光路图; (3)对你画出的光路图进行测量和计算,求得该玻璃砖的折射率 n=________(保留3位有效 数字); (4)为了观测光在玻璃砖不同表面的折射现象,某同学做了两次实验,经正确操作后插好了 8 枚大头针,如图丙所示.图丙中P 和P 是同一入射光线上的2枚大头针,其对应出射光线 1 2 上的2枚大头针是P 和________(选填“A”或“B”). 3 2.某同学在利用“插针法”测量一块红色直角三角形玻璃砖的折射率时发现,由于玻璃的 颜色较深,在另一侧很难观测到对侧所插的针.他想到可以用实验室的红色激光器来完成实 验.如图所示,他在木板上固定好白纸,放好玻璃砖,正确作出了界面 MN、MP、NP,然 后让很细的激光平行于木板从玻璃砖的上界面MN入射. (1)由于激光很强,不能用眼睛直接观测,该同学通过在木板上插入被激光照亮的针来确定激光光路,正确的插针顺序应是________. A.P、P、P、P B.P、P、P、P 1 2 3 4 4 3 2 1 C.P、P、P、P D.P、P、P、P 1 2 4 3 4 3 1 2 (2)若PP 与MN垂直,用量角器量得图中的θ=60°,θ=30°,则玻璃的折射率为________. 1 2 1 2 A. B. C. D. (3)若激光器正常发光,平行木板从玻璃砖NP界面垂直射入玻璃砖,如图中虚线箭头所示. 该同学发现在MP一侧始终找不到出射光线,则原因是______________;该同学在MP一侧 没有找到出射光线,但在MN一侧找到了出射光线,他依然用被激光照亮的针确定了激光在 MN一侧的出射光线和 NP一侧的入射光线,则测量后他__________(选填“能”或“不 能”)计算出玻璃的折射率. 3.某小组用“插针法”测平行玻璃砖的折射率,如图已确定好入射方向,AO与玻璃砖界面 aa′的夹角为α,插了两枚大头针P 和P 1、2、3、4分别是四条直线. 1 2, (1)在bb′侧调整观察视线,另两枚大头针P 和P 可能插在____线上(选填“1”“2”“3” 3 4 或“4”); (2)实验中画出入射点与出射点的连线,并测得连线与玻璃砖界面 aa′的夹角为β,则玻璃 砖的折射率n=________; (3)若描出玻璃砖两边界线aa′、bb′后,不小心将玻璃砖沿OA方向平移了一些再进行实 验,则折射率的测量值将__________(选填“偏大”“不变”或“偏小”). 4.如图所示,某同学为了测量截面为正三角形的三棱镜玻璃折射率,先在白纸上放好三棱 镜,在棱镜的左侧插上两枚大头针P 和P ,然后在棱镜的右侧观察到P 的像和P 的像,当 1 2 1 2 P 的像恰好被P 的像挡住时,插上大头针P 和P ,使P 挡住P 、P 的像,P 挡住P 和 1 2 3 4 3 1 2 4 3 P、P 的像.在纸上标出的大头针位置和三棱镜轮廓如图所示. 1 2 (1)画出对应的光路. (2)为了测出三棱镜玻璃材料的折射率,若以 AB作为分界面,需要测量的量是________和 ________,在图上标出它们. (3)三棱镜玻璃材料折射率的计算公式是n=________. (4)若在测量过程中,放置三棱镜的位置发生了微小的平移(移至图中的虚线位置且底边仍重 合),则以AB作为分界面,三棱镜玻璃材料的折射率的测量值________(选填“大于”“小 于”或“等于”)真实值.5.小明同学为探究光的折射定律设计了如图所示的实验装置,在玻璃水槽中竖直放置的光 屏由E和F两个半圆形光屏组成,其竖直方向的直径NOM为两半圆屏的分界线,其中半圆 形光屏F可绕直径NOM在水平方向折转. (1)实验时,先让光屏E、F位于同一平面内,一束激光贴着光屏E沿半径方向从空气斜射入 水中,在光屏F上________(选填“能”或“不能”)看到折射后的光束;小明将光屏F沿逆 时针(俯视)方向折转一定角度后,则在光屏F上________(选填“能”或“不能”)看到折射 光线,这说明折射光线和入射光线________(选填“在”或“不在”)同一平面内; (2)小明探究光从水射向空气时,折射角与入射角的关系,测得的数据如下表所示.由表中 数据可知,光从水斜射入空气中时,折射角________(选填“大于”“等于”或“小于”)入 射角. 入射角 22° 32° 41° 折射角 30° 45° 60°
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  1. CONNECT:[ UseTime:0.000774s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000766s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000727s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.027783s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000719s ]
  6. SELECT * FROM `set` [ RunTime:0.000311s ]
  7. SHOW FULL COLUMNS FROM `wendang` [ RunTime:0.000639s ]
  8. SELECT * FROM `wendang` WHERE `id` = 373732 LIMIT 1 [ RunTime:0.008155s ]
  9. UPDATE `wendang` SET `liulancishu` = 1 WHERE `id` = 373732 [ RunTime:0.022502s ]
  10. UPDATE `wendang` SET `lasttime` = 1773120712 WHERE `id` = 373732 [ RunTime:0.000726s ]
  11. SELECT * FROM `wendang` WHERE `id` < 373732 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000639s ]
  12. SELECT * FROM `wendang` WHERE `id` > 373732 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000476s ]
  13. SELECT * FROM `wendang` WHERE `id` <> 373732 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.006520s ]
  14. SELECT * FROM `wendang` WHERE `id` <> 373732 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001942s ]
  15. SELECT * FROM `wendang` WHERE `id` <> 373732 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.006535s ]
0.223950s