Question:

Anna holds a 11 D magnifier directly in front of her eye to get a close look at a 19-mm -diameter penny. Assume a typical 25 cm

Anna holds a 11 D magnifier directly in front of her eye to get a close look at a
19-mm -diameter penny. Assume a typical 25 cm near point and a distance of 1.7 cm
between the lens and the retina.
Part A:
What is the closest possible distance that she can hold the coin to have it appear in
focus?
Express your answer with the appropriate units.
Answer: 6.7 cm
Part B:
At this distance, how large does the image of the coin appear on her retina?
Express your answer with the appropriate units.

Anna holds a 11 D magnifier directly in front of her eye to get a close look at a 19-mm -diameter penny. Assume a typical 25 cm near point and a distance of 1.7 cm between the lens and the retina. Part A: What is the closest possible distance that she can hold the coin to have it appear in focus? Express your answer with the appropriate units. Answer: 6.7 cm Part B: At this distance, how large does the image of the coin appear on her retina? Express your answer with the appropriate units.