A projection lantern is used to give the image of a slide on a screen. If the image is 24 times as large as the slide and the screen is 72.0m from the projecting lens, what is the position of the slide from the lens?
a
0.3m
b
3.0m
c
3.5m
d
4.0m
Explanation
Correct Option
bVideo Explanation
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MariaGomez
2 months ago
Identify Given Values:
Magnification (
) =
(the image is
times the size of the slide).
Image distance (
) =
(distance from the lens to the screen).
Rearrange the Formula:
To find the object distance (
), rearrange the equation:
Perform the Calculation:
Substitute the known values into the equation:
