- #1

jaejoon89

- 195

- 0

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Magnification, M = - s_i / s_o

where s_i and s_o are the distances of the image and object, respectively

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I think the wording's throwing me off. It says the screen is moved--so does that mean the position s_i2 isn't actually 0.75 m but this number is just the displacement from the first value?

In which case:

2 = - s_i1 / s_o1

3 = - s_i2 / s_o2 = - (s_i1 +/- 0.75m) / s_o2 (I'm not sure if it should be + or -)

This would be 2 equations, 3 unknowns so I must be doing something wrong. Please help!