A candle is 49.0 cm in front of a concave spherical mirror of radius of curvature 70.0 cm. What are the image distance and the magnification, respectively?
a. -20.4 cm, +0.417
c. +20.4 cm, -0.417
b. +122.5 cm, -2.50
d. +122.5 cm, +2.50
B
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