An object 3.0mm high is placed 12cm from a convex mirror of radius of curvature
ID: 1373995 • Letter: A
Question
An object 3.0mm high is placed 12cm from a convex mirror of radius of curvature 12cm .
a.) Select the correct ray diagram:
b.)
Determine the image distance using the mirror equation 1 d o +1 d i =1 f . Follow the sign conventions.
Express your answer to one significant figure and include the appropriate units.
c.)
Determine the image size using the equation for magnification m=h i h o =?d i d o . Follow the sign conventions.
Express your answer to one significant figure and include the appropriate units.
b.)
Determine the image distance using the mirror equation 1 d o +1 d i =1 f . Follow the sign conventions.
Express your answer to one significant figure and include the appropriate units.
c.)
Determine the image size using the equation for magnification m=h i h o =?d i d o . Follow the sign conventions.
Express your answer to one significant figure and include the appropriate units.
An object 3.0mm high is placed 12cm from a convex mirror of radius of curvature 12cm . a.) Select the correct ray diagram: b.) Determine the image distance using the mirror equation 1 d o +1 d i =1 f . Follow the sign conventions. Express your answer to one significant figure and include the appropriate units. c.) Determine the image size using the equation for magnification m=h i h o =?d i d o . Follow the sign conventions. Express your answer to one significant figure and include the appropriate units.Explanation / Answer
For a convex mirror , the correct ray diagram is
SECOND , the image is smaller and it lies behind the mirror
b)
do = 12 cm
as f = r/2 = -12/2
f = -6 cm
using mirror formula
1/f = 1/di + 1/do
-1/6 = 1/12 + 1/di
di = -4 cm
the image distance is -4 cm
c)
ho = 3 mm
Now, hi = -(-4)*3/(12)
hi = 1 mm
the height of image is 1 mm
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