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- 1Question 1
An object is placed 30 cm in front of a concave mirror of focal length 15 cm. Where is the image, and what is it like?
- 2Question 2
An object is placed 15 cm in front of a concave mirror of focal length 10 cm. What is the magnification of the image?
- 3Question 3
An object is placed 30 cm in front of a convex mirror of focal length 15 cm. Where is the image formed?
- 4Question 4
A 5 cm tall object is placed in front of a concave mirror and the magnification is −3. Describe the image.
- 5Question 5
An object is placed 15 cm from a convex lens of focal length 10 cm. Where is the image formed?
- 6Question 6
An object is placed 10 cm from a convex lens of focal length 20 cm. Describe the image.
- 7Question 7
The table lists the power of four lenses. What is the focal length of lens B?
- 8Question 8
A doctor prescribes a lens of power −2.5 D. What kind of lens is it, and what is its focal length?
- 9Question 9
An object is placed 30 cm from a concave lens of focal length 15 cm. Where is the image formed?
- 10Question 10
The table shows object and image distances measured in an experiment with a convex lens. What is the focal length of the lens?
