Author Question: A 10-cm focal length converging lens is used to magnify small newspaper print 2.0 mm high. Calculate ... (Read 238 times)

sam.t96 · **on:** Jul 28, 2018

A 10-cm focal length converging lens is used to magnify small newspaper print 2.0 mm high. Calculate the height of the image (in mm) for the maximum magnification for a normal eye.
a. 3.5
b. 7.0
c. 9.2
d. 12
e. 2.5

Question 2

A far-sighted student has a near point of 1.0 m. Calculate the focal length (in cm) of the glasses needed so the near point will be normal (25 cm).
a. 72
b. 25
c. 33
d. 100
e. -33