A microscope has an objective of 10mm focal length and an eye piece of 25mm focal length. What is the distance between the lenses, if the object is in sharp focus when it is 10.5mm from the objective?
A. 232.1mm
B. 431.1mm
C. 511.9mm
D. 711.8mm
E. 913.7 may
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Answer:
option d
Explanation:
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