12. A mirror has a magnification of -2.5. Explain what this means in terms of the object produced. Please use at least 2 content related sentences.

13. Tom's father is 48 years old. He is not able to see nearby objects clearly.

a. What may be the reason for his vision problem?

b. Where are images formed in this type of defected vision?

c. How is this defect corrected?

.14 Why does chromatic aberration occur? Please use 3 content related sentences.