Gurmeet singh Asked a Question
December 14, 2020 6:49 pmpts 30 pts
Extinction angle is the angle between The light position and the dark position of a mineral The zero of the circular scale and the dark position The vibration direction of the lower and the upper nicols A vibration plane and a crystallographic direction in a mineral section
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  • Sajan sarthak thankyou
    No the Answer should be D.
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  • Saurabh Best Answer
    Correct answer is D. Extinction angle is generally an angle between the cleavage plane or crystal face (im short Crystallographic direction) and a vibration direction. Where 0° co...
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