Physics WAEC

An object is placed 10cm in front of a plane mirror. If it is moved 8cm away father away from the mirror, determine the distance of the final image from the mirror

A. 2cm
B. 9cm
C. 16cm
D. 18cm

Correct Answer: Option D

D. 18cm

SEE ALSO A transformer with 55500 turns in its primary is used between a 240V a. c supply and a 120V kettle. Calculate the number of turns in the secondary
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