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.

Answer 1

Answer:

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