An object and its image in a concave mirror are of the same height, y – McqOptions

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1.	An object and its image in a concave mirror are of the same height, yet inverted when the object is 30 cm from the mirror. The focal length of the mirror should be
A.	10 cm
B.	12 cm
C.	15 cm
D.	18 cm
Answer» D. 18 cm

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