The Distance Between the Object to Be Viewed and the Eyepiece

question 91

Multiple Choice

The distance between the object to be viewed and the eyepiece of a compound microscope is 25.0 cm. The focal length of its objective lens is 0.200 cm and the eyepiece has a focal length of 2.60 cm.
What is the magnitude of the total magnification of the microscope when used by the person of
Normal eyesight if it is designed for minimum eyestrain?

• A) 477
• B) 1070
• C) 204
• D) 520
• E) 772

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Definitions:

Thermal Stratification

The layering of water in a lake or ocean, based on temperature variations with depth, which can affect aquatic life and water quality.

Spring Turnovers

Spring turnovers are the annual mixing of water in lakes and ponds, resulting from temperature changes that cause layers of water to mix, refreshing nutrients and oxygen levels.

Fall Turnovers

The annual mixing of lake waters driven by temperature changes, encouraging nutrient redistribution and oxygen circulation.

Aquatic Organisms

Living beings that inhabit water environments, ranging from freshwater to marine ecosystems.