An object is 1.0 cm from the mirror, its height is 3.0 cm, and the focal length is 2.0 cm. What is the distance from the image to the mirror? si = _____ cm
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for concave mirror,
u=-1cm
h=3cm
f=-2cm
1/u+1/v=1/f
1/v=1/f-1/u
1/v =1/-2+(1/1)
1/v=-1/2
v=-2cm
for convex mirror
u=-1cm
f=2cm
1/v=1/f+1/u
1/v=1/2+1/1
v=2cm
u=-1cm
h=3cm
f=-2cm
1/u+1/v=1/f
1/v=1/f-1/u
1/v =1/-2+(1/1)
1/v=-1/2
v=-2cm
for convex mirror
u=-1cm
f=2cm
1/v=1/f+1/u
1/v=1/2+1/1
v=2cm
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