Multiple Choice
A thin lens of focal length 20 cm is placed in contact with a 40-diopter thin lens.What is the power of the combined lenses?
A) 1/4 diopter
B) 35.0 diopters
C) 45.0 diopters
D) 80 diopters
E) 4 diopters
Correct Answer:
Verified
Correct Answer:
Verified
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