An object placed 10.20 cm from a concave spherical mirror produces a real image
ID: 1287581 • Letter: A
Question
An object placed 10.20 cm from a concave spherical mirror produces a real image 7.00 cm from the mirror. If the object is moved to a new position 20.0 cm from the mirror, what is the position of the image?cm ---Location---in front of the mirrorbehind the mirror
Is the final image real or virtual?
virtualreal
An object placed 10.20 cm from a concave spherical mirror produces a real image 7.00 cm from the mirror. If the object is moved to a new position 20.0 cm from the mirror, what is the position of the image?
cm ---Location---in front of the mirrorbehind the mirror
Is the final image real or virtual?
virtualreal
virtualreal
Explanation / Answer
The spherical mirror equation is
1/ p + 1/ q = 1/ f
1/ f = 1/ 10.20 cm + 1/ 7.0 cm
f = 4.15 cm
if the object is moved to 20 cm
1/ q = 1/ 4 cm - 1/ 20 cm
q = 5 cm
real and inverted image
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