A typical red blood cell subtends an angle of only when
Chapter 27, Problem 59(choose chapter or problem)
A typical red blood cell subtends an angle of only when viewed at a persons near-point distance of 25 cm. Suppose a red blood cell is examined with a compound microscope in which the objective and eyepiece are separated by a distance of 12.0 cm. Given that the focal length of the eyepiece is 2.7 cm, and the focal length of the objective is 0.49 cm, nd the magnitude of the angle subtended by the red blood cell when viewed through this microscope.
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