6. Given an object distance of 39[mm] and a thin-lens focal length of 113[mm], t
ID: 1474313 • Letter: 6
Question
6. Given an object distance of 39[mm] and a thin-lens focal length of 113[mm], then what is the image distance?
[mm].
Answer with three significant figures or N/A if there is not enough information.
7. What is the scale factor (M) of the image seen in the previous question?
Answer with three significant figures or N/A if there is not enough information.
3. What is the magnification equation?
Magnification = -qp-2
Magnification = 1/q + 1/p
Magnification = 1/f + 1/q
Magnification = -qp-1
Magnification = -pq-1
Magnification = qp-1
Explanation / Answer
6)
given
p = 39 mm
f = 113 mm
q = ?
use, 1/p + 1/q = 1/f
1/q = 1/f - 1/p
1/q = 1/113 - 1/39
q = -59.6 mm <<<<<<<-----------Answer
7) magnification, M = -q/p
= -(-59.6)/39
= 1.528
8) Magnification = -qp-1 or ( M = -q/p )
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