Which of the following is not true for comparison method used for cal – McqOptions

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1.	Which of the following is not true for comparison method used for calibration of polygons?
A.	Identical polygons are used
B.	Polygons are mounted one above the other
C.	Polygons are mounted on the fixed table
D.	Reflecting faces of both the polygons are viewed simultaneously
Answer» D. Reflecting faces of both the polygons are viewed simultaneously

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