The minimum size that human vision is capable of visualizing | Mathematics 163 ENEM 2024 Yellow Test
The minimum size that human vision can see without the use of auxiliary equipment is equivalent to 100 micrometers (1 micrometer = 10⁻³ millimeters). A student intends to view and analyze human red blood cells, which measure 0.007 mm in diameter.
She purchased an optical microscope with an ocular lens that magnifies the image of the object under observation by 10 times, and a set of objective lenses with the following magnification capabilities:
• Lens I: 2 times;
• Lens II: 10 times;
• Lens III: 15 times;
• Lens IV: 1.1 times;
• Lens V: 1.4 times.
This microscope's operation allows the use of the ocular lens alone or in combination with one of its objective lenses, thus increasing its final magnification capacity, which is determined by the product of the magnification capabilities of the ocular and objective lenses.
This student intends to select the lowest magnification objective lens that, when combined with the eyepiece, allows the visualization of human red blood cells.
The objective lens to be selected by the student is:
A) I
B) II
C) III
D) IV
E) V
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