The human naked eye can differentiate between two points which are __________ apart?
A. 1.0 mm
B. 0.1 mm
C. 1.0 cm
D. 1.0 dm
The human naked eye can differentiate between two points which are __________ apart?
A. 1.0 mm
B. 0.1 mm
C. 1.0 cm
D. 1.0 dm