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Physics
Physics
Problem
For a spherical mirror, what is the relation between its focal length
f
f
f
and radius of curvature
R
R
R
? a)
f
=
R
f = R
f
=
R
b)
f
=
R
3
f = \dfrac{R}{3}
f
=
3
R
c)
f
=
R
2
f = \dfrac{R}{2}
f
=
2
R
d)
f
=
2
R
f = 2R
f
=
2
R
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