Lens Equations (lesson 9) Flashcards
1
Q
We have used
A
RAY DIAGRAMS to show where an
image would be located when looking through a
lens…
2
Q
Object distances (d0) are
A
are always positive
3
Q
Image distances (di) are
A
positive for REAL images
4
Q
An image is real when it appears on the
A
OPPOSITE side of the
object
5
Q
Image distances (di) are
A
negative for VIRTUAL images
6
Q
The focal length (f) is
A
positive for CONVERGING lenses and
negative for DIVERGING lenses
7
Q
Magnification (M) is
A
positive for an upright image and negative for
an inverted image
8
Q
Object height (ho) is
A
positive for upright object
9
Q
Object height (ho) is
A
negative for an inverted object
10
Q
Image height (hi) is
A
positive for upright image
11
Q
Image height (hi) is
A
negative for an inverted image
