The discussion focuses on calculating the magnification of a spherical Christmas tree ornament with a diameter of 4.76 cm when an object is placed 11.9 cm away. The focal length (f) is determined to be 1.19 cm using the formula f = 0.5 * r, where r is the radius. The image distance (di) is calculated using the lens formula (1/di) + (1/do) = 1/f, resulting in di = 1.32222 cm. The magnification (m) is then computed as m = -(di/do), yielding a value of -0.1111.
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Kris1120 said:Homework Statement
A spherical Christmas tree ornament is
4.76 cm in diameter.
What is the magnification of the image of
an object placed 11.9 cm away from the ornament?
Homework Equations
f = .5* r
(1/di) + (1/do) = 1/f
m=-(di/do)
The Attempt at a Solution
f = .5*2.38 = 1.19 cm