Choose the one alternative that best completes the statement or answers the question.
-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