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Reflection of light

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rohtarantula
 
Reply Fri 17 Jul, 2009 07:40 am
Calculate the critical angle alpha [g] of the total reflection at the transition of light from a thick crown 3.45957 cm in 20 ° C hot air! Note: x °, rounded up!
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rohtarantula
 
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Reply Fri 17 Jul, 2009 11:41 am
@rohtarantula,
Hints:
http://en.wikipedia.org/wiki/Refractive_index
http://en.wikipedia.org/wiki/Total_internal_reflection
http://en.wikipedia.org/wiki/List_of_refractive_indices

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oolongteasup
 
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Reply Sat 18 Jul, 2009 10:38 pm
@rohtarantula,
the critical angle = invsine ( 1 / 1.52) = 41.1 degrees

extreme caution recommended upon reflection
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