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Khushidebo
What is the critical angle for Canada Balsam?
Lasand
If Canada balsam has the same refractive index of crown glass of 1.52, then the critical angle is 41.1 degrees.

http://en.wikipedia.org/wiki/Canada_balsam

http://www.physicsclassroom.com/Class/refrn/U14l3c.cfm
LouPhillips
Lasand told you the right answer of your question me also agree with his reply.
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