Assuming human normal vision distance 25 cm, smallest measurable angle – McqOptions

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1.	Assuming human normal vision distance 25 cm, smallest measurable angle 20", and introcular distance 6.5 cm, the smallest depth to be discerned is
A.	0.1 mm
B.	0.5 mm
C.	1.00 mm
D.	1.1 mm.
Answer» B. 0.5 mm

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