Alocal fun house incorporates a gently curved, concave, spherical mirror into its display. when a child stands 1.2 m from the mirror, her reflection is upside down and appears to float in front of the mirror. when she stands about 0.8 m from the mirror, she sees only a blur reflected in the mirror, but when she stands about 0.5 m from the mirror, her reflection is right side up and appears to be behind the mirror.
the approximate focal length of the mirror is
a) more than 0.8 m .
b) equal to 0.8 m .
c) between 0.5 m and 0.8 m .
d) less than 0.5 m .
Answers: 2
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