[問題] 水中的黃花看起來會變藍花嗎?

看板Physics作者 (ya)時間14年前 (2011/12/04 09:26), 編輯推噓6(6推 0噓 26→)
留言32則, 10人參與, 最新討論串1/1
如果有一個黃花 放在水中 眼睛再潛水進去看 那因為水的折射率是4/3 所以會讓光波長變小 因此岸上看的黃花(6000埃)置於水中看會變成藍光(4500埃) 請問這樣的推論正確嗎? -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 118.165.168.98
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12/04 09:30, , 1F
No.
12/04 09:30, 1F
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12/04 09:31, , 2F
Finally,light enters your eyes..
12/04 09:31, 2F
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12/04 09:36, , 3F
but light enters the eyes with 4500A lamda...
12/04 09:36, 3F
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12/04 09:37, , 4F
why looks not like blue ray?
12/04 09:37, 4F
推
12/04 09:37, , 5F
because you forget the frequency will remain the same
12/04 09:37, 5F
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12/04 09:42, , 6F
so which can determine the color of light
12/04 09:42, 6F
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12/04 09:42, , 7F
is the frequency not the lamde , am I right?
12/04 09:42, 7F
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12/04 10:14, , 8F
It's 4500A in water, not in your eyes.
12/04 10:14, 8F
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12/04 10:14, , 9F
Your eyes are still eyes, not changing when you are
12/04 10:14, 9F
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12/04 10:14, , 10F
in water.
12/04 10:14, 10F
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12/04 10:15, , 11F
Which can determine the color of light?
12/04 10:15, 11F
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12/04 10:16, , 12F
frequency or wavelength? Same for me, but if you
12/04 10:16, 12F
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12/04 10:16, , 13F
get confused, then take "frequency" as the answer.
12/04 10:16, 13F
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12/04 10:17, , 14F
It's about the excitation of the cone cell of your
12/04 10:17, 14F
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12/04 10:17, , 15F
eyes.
12/04 10:17, 15F
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12/04 10:45, , 16F
OK! THANKX
12/04 10:45, 16F
推
12/04 12:48, , 17F
......................................................
12/04 12:48, 17F
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12/04 13:36, , 18F
我想說的是，這個不是很容易實驗嗎 (雖然好像不需要。
12/04 13:36, 18F
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12/04 13:52, , 19F
這個很容易實驗，不過跟常聽到的波長決定顏色說法有出入
12/04 13:52, 19F
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12/04 13:52, , 20F
所以還是需要討論一下才能清楚^^
12/04 13:52, 20F
推
12/04 22:48, , 21F
波長決定頻率，頻率決定能量，能量決定受器會不會激發?
12/04 22:48, 21F
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12/04 22:50, , 22F
光在水的波長會改變，但光子(?)的能量不變。
12/04 22:50, 22F
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12/04 22:50, , 23F
這樣好向有問題....
12/04 22:50, 23F
推
12/04 23:25, , 24F
如果要測量波長，受器必須能夠偵測電磁場在整個空間的分佈
12/04 23:25, 24F
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12/04 23:28, , 25F
網膜只是一個面，所以不能測量波長
12/04 23:28, 25F
推
12/05 16:34, , 26F
是頻率決定顏色吧?
12/05 16:34, 26F
推
12/06 00:18, , 27F
感光的是網膜，角膜、水晶體負責屈光。除非眼球進水，否則
12/06 00:18, 27F
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12/06 00:19, , 28F
光到網膜之前的最後一個介質不會變。所以波長照舊。
12/06 00:19, 28F
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12/06 01:14, , 29F
我生物不夠好，總之不是角膜在感光，眼睛裡的光介質換不了
12/06 01:14, 29F
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12/06 13:45, , 30F
樓上的說法很有道理耶，不錯!
12/06 13:45, 30F
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08/13 16:31, , 31F
but light e https://noxiv.com
08/13 16:31, 31F
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09/17 14:29, , 32F
所以還是需要討論一下才 https://daxiv.com
09/17 14:29, 32F
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