a. Fill in the blanks in the following paragraph to identify the properties of mirrors and lenses.
Lenses produce images through _______________, but mirrors produce images through _______________. A _______________ mirror and a _______________ lens focus light at a point. A _______________ mirror and a _______________ lens spread light apart.
b. Compare the signs of ƒ for lenses and mirrors.
c. What kind of image is formed when the image distance is positive? What kind of image is formed when the image distance is negative?