Author Question: A lens is used as a magnifier. Which of the following statements is incorrect? a. The focal length ... (Read 20 times)

sarasara · **on:** Jul 28, 2018

A lens is used as a magnifier. Which of the following statements is incorrect?
a. The focal length of the lens must be negative.
b. The magnification is greatest when the eye focuses at the near point.
c. The refractive power of the lens is positive.
d. The lens is convex.

Question 2

A magnifier uses a:
a. diverging lens to form a real image.
b. diverging lens to form a virtual image.
c. converging lens to form a real image.
d. converging lens to form a virtual image.