A lens is used as a magnifier to view an ant placed on a piece ofpaper. the image of the ant is 15cm from the lens and the magnifierfactor is 3.
a. how far from the paper (the ant) is the lens?
b. what is the focal length of the lens? is it converging ordiverging?
c. is the image virtual or real?
d. suppose you now use new lens whose focal length is 10cm to reada newspaper, but your near point is 30cm. how far should the lensbe from the paper?
e. now suppose you use this lens as a part of a camera, and youwant to photograph an object which is 50cm to the left of thecamera. what is the distance between the lens and the film?
in each case draw a diagram showing how the image is located usingatleast two principle rays. one diagram for (a,b,c) for d and for e
A lens is used as a magnifier to view an ant placed on a piece ofpaper. the image of the ant is 15cm from the lens and the magnifierfactor is 3.
a. how far from the paper (the ant) is the lens?
b. what is the focal length of the lens? is it converging ordiverging?
c. is the image virtual or real?
d. suppose you now use new lens whose focal length is 10cm to reada newspaper, but your near point is 30cm. how far should the lensbe from the paper?
e. now suppose you use this lens as a part of a camera, and youwant to photograph an object which is 50cm to the left of thecamera. what is the distance between the lens and the film?
in each case draw a diagram showing how the image is located usingatleast two principle rays. one diagram for (a,b,c) for d and for e
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