實(shí)驗(yàn)4：光的折射、偏振、干涉和繞射lab4-refraction,-資料下載頁(yè)
2024-09-29 09:18本頁(yè)面
【導(dǎo)讀】雷射光直接對(duì)著自己或他人的眼睛射照。反射光照射到自己或他人的頭部。所以，高功率雷射更要嚴(yán)格遵守使用雷射的相。未經(jīng)允許不可隨意開(kāi)啟儀器外殼，以免發(fā)生高壓觸電的危險(xiǎn)。接有地線的電源插座上。以防萬(wàn)一雷射內(nèi)部漏電，電流可經(jīng)。由接地線快速流通到地下，才不致傷害人體。
【正文】 the orientation of an image. ? Making use of total internal reflection instead of refraction. PhysicsNTHU MFTai戴明鳳 Experimental Procedures 1. Let laser beam horizontally incident to the wall or a white paper which has a distance of about m far away. To mark the position of laser beam. 2. Settle the triangular prism on the optical platform with the Ushaped support device and angular scale disc. To adjust the proper position of prism to locate the path of laser beam. 3. Rotate the prism slowly and observe the deviation path of the refracted laser beam by prism. To mark the beam position when the angle of deviation through a prism is minimum. 4. Prisms are typically characterized by their angle of minimum deviation d. This minimum deviation is achieved by adjusting the incident angle until the ray passes through the prism parallel to the bottom of the prism. PhysicsNTHU MFTai戴明鳳 Experimental Procedures 5. To measure the distance of the both positions marked by step (1) and (3), and the distance between the prism and the screen of laser spot. To calculate the angle of minimum deviation, ?, for the prism based on the formula above. 6. Change the incident angle of laser into the prism and repeat the procedures (2) to (4), to get the other the angle of minimum deviation, ?. 7. To measure the apex angle of the prism ?. 8. To determine the refraction index of the prism. PhysicsNTHU MFTai戴明鳳 B. Polarization of Light (光的偏振 )
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