An object must measure approximately how many micrometers to be visible without a microscope?

Understand the Problem

The question is asking for the approximate size of an object, measured in micrometers, that can be seen by the naked eye without the aid of a microscope. We need to identify the threshold size that allows visibility.

Answer

About 100 micrometers (µm).

An object must measure approximately 100 micrometers (µm) to be visible without a microscope.

Answer for screen readers

An object must measure approximately 100 micrometers (µm) to be visible without a microscope.

More Information

An object measuring about 100 micrometers can typically be seen with the naked eye. However, most microorganisms are much smaller, requiring magnification for visibility.

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