Question

What is the magnification factor if the SID is 40" and the OID is 10"

a) 0.979
b) 1.5
c) 2.0
d) 1.021

Answer 1

To calculate the magnification factor with an SID of 40 inches and an OID of 10 inches, the formula m = SID / (SID - OID) is used, giving a result of approximately 1.333, which can be rounded to 1.5.

Step-by-step explanation:

To find the magnification factor when the Source-to-Image Distance (SID) is 40 inches and the Object-to-Image Distance (OID) is 10 inches, you can use the magnification formula:

m = SID / (SID - OID)

Here, SID = 40" and OID = 10", so:

m = 40" / (40" - 10")
m = 40" / 30"
m = 1.333...

None of the given options matches this result exactly. However, if we round it, the answer could be approximated to 1.5 if the listed options were meant to cover this range. In the absence of more context or options that match more precisely, this would be the closest guess.