king157
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| Joined: 06 Jan 2009 |
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| 08 Feb 2016 11:46 AM |
Q3 A) The refractive index in glass for red light is 1.514. Calculate the speed of red light in a glass block. Speed of light in a vacuum = 3x10(Power of 8) m/s.
In case you were wondering 3x10(power of 8) is 300,000,000
Zut alors! Someone has sat on my bagel! |
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king157
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| 08 Feb 2016 11:50 AM |
bump
Zut alors! Someone has sat on my bagel! |
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Laakari
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| 08 Feb 2016 11:52 AM |
That's easy just multiply the constant with the speed of light.
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king157
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| 08 Feb 2016 11:53 AM |
hm
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| 08 Feb 2016 11:53 AM |
| What exam board is that? UK? |
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Sonorant
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| Joined: 14 Apr 2010 |
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| 08 Feb 2016 11:54 AM |
c = n x v
with c being the speed of light in a vacuum, n being the refractive index, and v being the speed of light in the glass block
v = c / n
3x10^8 / 1.514
v = 198,150,594 m/s
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king157
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| 08 Feb 2016 11:55 AM |
where did u get 3x10^8 from?
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king157
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| 08 Feb 2016 11:55 AM |
lol nvm its speed of light in vacuum
and thanks son u made most sense to me
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Sonorant
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| 08 Feb 2016 11:56 AM |
"Speed of light in a vacuum = 3x10(Power of 8)"
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| 08 Feb 2016 11:56 AM |
"In case you were wondering 3x10(power of 8) is 300,000,000"
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| 08 Feb 2016 11:57 AM |
| U purposefully missed what I said :/ |
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king157
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| 08 Feb 2016 11:58 AM |
its uk
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Danielogy
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