If my aircraft has luminance of 10 unit and is designed to operate in – McqOptions

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1.	If my aircraft has luminance of 10 unit and is designed to operate in background which has luminance of 8 unit then, what will be the approximate value of contrast?
A.	0.25 unit
B.	1.25
C.	5.25unit
D.	5.26
Answer» B. 1.25

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