[題目] 單狹縫繞射

看板Physics作者 (WOW)時間12年前 (2012/02/09 21:25), 編輯推噓0(002)
留言2則, 2人參與, 最新討論串1/2 (看更多)
[領域]光學 (題目相關領域) [來源]考古題 (課本習題、考古題、參考書...) [題目]A camera lens 50mm from the plane.The lens focus the light from two distant point sources so that the centers of their diffraction patterns are separated by 0.025mm,Find the smallest diameter of lens aperture in mm that allows these two images to be resolved in the visible wavelength range(400nm<λ<700nm) [瓶頸] (寫寫自己的想法,方便大家為你解答) 我覺得題目的意思是0.025是中央亮帶的寬度(2λL/a) 經由換算之後我算出來的答案是最小要1.6mm可是答案給的是0.98mm 不知道我是不是有算錯 謝謝~ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 122.116.13.191

02/09 23:44, , 1F
0.025的單位是?
02/09 23:44, 1F

02/10 00:15, , 2F
mm
02/10 00:15, 2F
※ 編輯: retryi12 來自: 122.116.13.191 (02/10 00:15)
文章代碼(AID): #1FCyb1QN (Physics)
文章代碼(AID): #1FCyb1QN (Physics)