Question

multiple choice question
which sized object would be the smallest size the human eye can detect?

0.2 meter
0.2 centimeter
0.2 millimeter
0.2 micrometer

Explanation:

The human eye's resolving power allows it to detect objects as small as approximately 0.2 millimeters under optimal conditions. Objects smaller than this (like 0.2 micrometers) require a microscope, while the larger options (0.2 meter, 0.2 centimeter) are easily visible to the naked eye.

Answer:

0.2 millimeter