http://i409.photobucket.com/albums/pp172/momoko_deedee/prac_5.jpg
plz show steps...xDD
thx alot*
diffraction grating
2010-05-12 3:38 am
回答 (1)
2010-05-12 3:51 am
✔ 最佳答案
1. For diffraction grating, dsin@ = n入For first order maximum, n = 1
So, dsin20.5* = 632.8 X 10^-9
Grating separation, d = 1.81 X 10^-6 m
2. By E = hc/入
Energy = (6.63 X 10^-34)(3.0 x 10^8)/(410 X 10^-9)
= 4.85 X 10^-19 J
= 3.03 eV
參考: Physics king
收錄日期: 2021-04-19 22:11:08
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100511000051KK01174