Optical mineralogy UE Past Papers Questions.


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(1800) Question Category: Short answers

What is the sign of elongation of a mineral grain with properties shown in the diagram below,

Before inserting a length fast accessory plate the grain shows 3rd order interference colors. After inserting a length fast accessory plate the grain shows 2nd order interference colors.

Optical Mineralogy geology

 

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(1801) Question Category: Short answers

State the Snell`s law

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(1802) Question Category: Short answers

Explain in brief the meaning of critical angle.

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(1803) Question Category: Short answers

What is the difference between isotropic and anisotropic media?

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(1804) Question Category: Short answers

Mention three different but related  types of polarization.

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