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Trace: Microscopes
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Real image
Formed on the side of the lens opposite the object
inverted image
image can be viewed on a screen
A ______ image is formed on teh side of the lens opposite the object
real
A ______ image is inverted and formed by the convergence of light rays at a given plane
real
Virtual image
diverge from a plane on the same side of the lens as the object
image is erect (upright)
image cannot be viewed on a screen or a piece of film
another lens is needed to conver the virutual image into a real image
A _____image is on the same side of the lens as the object
virtual
A ____image is upright
virtual
Optic axis
straight line running through the centers of curvature of two surfaces
If the object is on-axis at infinity on the left side of the lens..the lens will form a _______ on the______ at the _______ of the lens
real image on the right side at the principal focus of the lens
Focal length
distance from the lens to the principal focus
principal focus
lens-image
Ideal lens
1/f=1/p +1/q
1/focal length= 1/object distance +1/image distance
if p or q is set to infinity then the other will equal focal length
If p approaches the lens on the left side, q will:
recede from the lens on the right side
If q and p vary with a fixed f the plot shape is a _____ and the sixe of the image is:
hyperbola
equal to the size of the object
Magnification
m=
m=q/p
if p=2f=q then:
maginification is 1
if p>q then m<1 and there is:
reduction of the image
if p<q then m>1 and there is:
magnification of the image
If q reaches infinity then magnification reaches infintiy and
it is not a useful magnification
Author
minna528
ID
27558
Card Set
Trace: Microscopes
Description
Trace evidencce
Updated
2010-07-21T17:38:41Z
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