A compound microscope has a 18-cm-long barrel and an objective lens with a focal length of 8.0 mm.
What is the focal length of the eyepiece to give a total magnification of 240? It is adjusted for minimum eyestrain for persons with a near point of 25 cm. A) 1.3 m
B) 1.5 cm
C) 1.9 cm
D) 2.1 cm
E) 2.3 cm
Question 2
If you stand in front of a convex mirror, at the same distance from it as its radius of curvature,
A) you will see your image and it will be the same size as you except upside down.
B) you won't see your image because it is focused at infinity.
C) you will see your image and you will appear larger than you.
D) you will see your image and you will appear smaller than you.
E) you won't see your image because there is none.
A herd of barren-ground caribou at the Thelon River. This subspecies is a long-distance migrant
Scorpions, Spiders and Sharks: Electron-Microscope Images
Confocal Microscope
A photograph of Commodore Matthew Perry in 1855 juxtaposed with a Japanese portrait of him. When Per
Long-range forecasts
Use fingertips to apply friction to muscle attachments along inferior length of the clavicle.