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beam splitter question

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mercury

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Feb 9, 2010, 1:59:29 AM2/9/10
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May it is a silly question but i want to be sure - if there is an
expert or someone who has such BS in hand??

Would you be so kind to answer the following problem:
if there is a beam spitter 90/10 e.g. transmittance 90% and 10%
reflectivity from the one (front) side would it be also 90%
transmittance and 10% reflectivity on the (other) back side?
Thank you in advance.

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