what is canada balsam paste ,explain in a little detail plz
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this plate is used to show ppl rotation and two rays formation E ray or O ray
rajan84:
thats actually a paste to join 2 prisms together i think , are you sure ?
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Due to its high optical quality and the similarity of its refractive index to that of crown glass (n = 1.55), purified and filtered Canada balsam was traditionally used in optics as an invisible-when-dry glue for glass, such as lens elements.
Canada balsamwas also commonly used for making permanent microscope slides
Canada balsamwas also commonly used for making permanent microscope slides
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