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OpenStudy (anonymous):
The light beam of wavelength 550 nm in vacuum travels with a speed of 2.55*10^8 m/s and makes an angle 0f 20 inside the layer of coconut oil with the normal NN' at the oil-glass boundary. (c=3*10^8 m/s) 1) find the refractive index of coconut oil.
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OpenStudy (anonymous):
Check out the first paragraph in this link http://en.wikipedia.org/wiki/Refractive_index
OpenStudy (anonymous):
what the law can I use for this ..
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