Which of the following is true for a method of measurement of surface – McqOptions

MCQOPTIONS

1.	Which of the following is true for a method of measurement of surface finish with surface photographs?
A.	different type of illumination is needed
B.	no effect of type of illumination
C.	same type of illumination is needed
D.	monochromatic light is needed
Answer» B. no effect of type of illumination

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