B. What is the focal length of this mirror? (Hint: Use the mirror equation.) Show your work:
do=14 di=21 di/do= 21/14 M=1.5
1/do+1/di=1/1 1/14+1/21=
9. Practice: A candle is placed 9 cm in front of a concave mirror with a focal length of 6 cm.
A. How far from the mirror will the image be located?
B. What is the magnification of this image?
Show your work:
10. Challenge: When an object is between the focal point and a concave mirror, s, is negative. What other
values must be negative for your equations to still work? (Hint: The distance between the focal point and
the lens () is always positive for a concave mirror.)
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