The Eyepiece of a Compound Microscope Has a Focal Length

question 24

Multiple Choice

The eyepiece of a compound microscope has a focal length of 2.50 cm and the objective has a focal length of 1.60 cm.The two lenses are separated by 14.0 cm.The microscope is used by a person with normal eyes (near point at 25 cm) .What is the angular magnification of the microscope?

• A)72
• B)88
• C)180
• D)219
• E)115

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