Naiya wears glasses to correct her nearsightedness. The lense have a power of P1 -2.50 D, and they are just powerfu
Naiya wears glasses to correct her nearsightedness. The lense have a power of P1 -2.50 D, and they are just powerfu
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Transcribed Image Text:Naiya wears glasses to correct her nearsightedness. The lenses
have a power of Pi
-2.50 D, and they are just powerful
enough to allow Naiya to clearly focus on distant objects (i.e.,
objects located at infinity). Unfortunately, her glasses have
gone missing, so today she is forced to wear her backup pair.
The backup pair has a weaker prescription, but otherwise the
two pairs of glasses are identical. Using the backup pair, she
is only able to clearly focus on objects if they are closer than
= 4.0 m from the lenses. What is the power P2 of the lenses
in her backup pair? (Hint: your far point doesn't change when
you take off your glasses.) Make sure that your representation
indicates all the relevant details of the problem, such as: im-
age distance, object distance, far point, lens-eye distance, lens
shape, etc.
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