While visiting Ye Olde Shottle Bop, a store selling strange and exotic objects,
ID: 2092763 • Letter: W
Question
While visiting Ye Olde Shottle Bop, a store selling strange and exotic objects, you
come across a perfectly mirrored glass sphere. It looks pretty strange and you hold
your finger near it. Your situation is presented schematically in the figure below with
an arrow drawn to represent your finger.
a. On the figure, draw a ray diagram that will help you identify where the image is
located.
b. Is the image real or virtual? Explain why you say so.
c. The mirror has a radius of 32 cm, the finger is a distance of 8 cm from the surface
of the mirror, and the finger is 8 cm long. Calculate the location and size of the
image using the mirror equation. Does your calculation agree with your drawing?
If not, explain why not.
It is #6 at this link!!!!------->http://astro1.panet.utoledo.edu/~kshan/phys2080/pdf/2080HW6_S2011.pdf
Explanation / Answer
Hey, chegg doesnt support ray diagram drawing software...SO i cant draw it here..If you realy wish, I can try uploading the pic...But please rate all answers as 5 stars...
R = 32 cm
f = R / 2 = 16 cm
u = -8 cm
1 / v + 1 / u = 1 / f
So, v = 5.333 cm
Hi = -v * ho / u = -5.333 * 8 / -8 = 5.333 cm
Image is formed at 5.333 cm on the other side of the mirror
It is virtual
It is Upright
Height of Image is 5.333 cm
It should agree with the ray diagram
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