A Microscope Has an Objective Lens of Focal Length 1

question 77

Multiple Choice

A microscope has an objective lens of focal length 1.40 mm and an eyepiece of focal length 20.00 mm. It is adjusted for minimum eyestrain for persons with a near point of 25.0 cm. A blood
Sample is placed 1.50 mm from the objective. How far apart are the lenses?

• A) 23 mm
• B) 21 mm
• C) 41 mm
• D) 20 mm

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