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ANOTHER OBVIOUS SELF-CORRECTIONh this?
WAS MADE. I HOPE IT OK NOW.
Those who use College Physics
of Serway (6th edition) probably
noticed that the sign convention
for q (for spherical mirrors) is
wrong on page 720. Check this
via the example on p 723. The
convention used to interpret the
resulting q is correct in the
example but not in Table 23.1
P.S.
The general rule, with only one
exception, is that an image of a
real object produced by a mirror
is virtual and upright. It is always
true for flat mirrors, it is always
true for convex mirrors and it is
true for concave mirrors when
p<f=R/2. The only exception is a
convex mirror for p>f. In that case
the image is real and inverted.
Try to find a situation in which the
image (of an arrow facing a mirror)
is "real but not inverted," or that
is "virtual and inverted." In other
words, virtual images are always
upright while real images are always
inverted Do you agree wit
Ludwik Kowalski