Compound Microscope: The focal lengths of the objective lens and the eyepiece of a microscope are 0.50 cm and 2.0 cm, respectively, and their separation adjusted for minimum eyestrain is 6.0 cm. If the microscope is focused on a small object, what is the distance between the object and the objective lens?
A. 0.31 cm
B. 0.42 cm
C. 0.49 cm
D. 0.57 cm
E. 0.73 cm
Answer: D
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