Work book
(i) u > 2 f
F’
2F’
2F
F
u = 物距
f = 焦距
Work book
(iv) u = f
F’
2F’
2F
F
u = 物距
f = 焦距
Work book
(v) u < f
F’
2F’
2F
F
Work book
(vi) 凹透鏡
F’
2F’
2F
F
Thick lens
Thin lens
Which one has a longer focal length?
Thickness of lens
Thick lens 厚透鏡
Thin lens薄透鏡
Shorter focal length焦距較短
Longer focal length焦距較長
Focal length
retina
Normal sight 正常視力
遠景物的光線
薄晶體
retina
Normal sight 正常視力
近景物的光線
厚晶體
Experiment with model eye (VCD)
視網膜
Workbook
Workbook
lens薄透镜 来自淘豆网m.daumloan.com转载请标明出处.
