Question

You have three lenses L1, L2, and L3 of powers +10D, +5D, and -10D respectively.
a. State the nature and focal length of each lens.
b. Explain which of the three lenses will form a virtual and magnified image of an object
placed at 15 cm from the lens.
c. Draw the ray diagram in support of your answer.

Pls Answer it ASAP, I need to submit it...

Answer 1

Answer:

answer in the attachment