物理一題 - 考試
By Kama
at 2014-05-03T07:21
at 2014-05-03T07:21
Table of Contents
在補習班模擬考寫到一題,沒老師可以問,也google不到,在此請教
題目:
在雙狹縫干涉實驗中,以波長為5.9*10^(-7)m的單色光照射在相隔為0.80mm的條狹縫上,
光屏與狹縫相距1.0m,則相鄰兩暗線的距離為多少mm?
(A)0.19
(B)0.37
(C)0.74
(D)3.7
(E)7.4
ANS (E)
----------------
我的解法是全部換成mm,在代公式 rλ/d
r = 1000mm
λ = 5.9*10(-4)mm
d = 0.80mm
代入後得0.7375
與答案不合,請問有哪裡算錯嗎??
謝謝
--
題目:
在雙狹縫干涉實驗中,以波長為5.9*10^(-7)m的單色光照射在相隔為0.80mm的條狹縫上,
光屏與狹縫相距1.0m,則相鄰兩暗線的距離為多少mm?
(A)0.19
(B)0.37
(C)0.74
(D)3.7
(E)7.4
ANS (E)
----------------
我的解法是全部換成mm,在代公式 rλ/d
r = 1000mm
λ = 5.9*10(-4)mm
d = 0.80mm
代入後得0.7375
與答案不合,請問有哪裡算錯嗎??
謝謝
--
Tags:
考試
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