Which of the following statements are true for refraction in curved surfaces? (S

Question

Which of the following statements are true for refraction in curved surfaces? (Select all that apply.)

[ ] The focal length for a converging lens is sometime negative, depending on where the object is placed.
[ ] The focal length for a converging lens is always negative.
[ ] The focal length for a converging lens is always positive.
[ ] The focal length for a diverging lens is sometime negative, depending on where the object is placed.
[ ] The focal length for a diverging lens is always positive.
[ ] The focal length for a diverging lens is always negative.

Explanation / Answer

[ ] The focal length for a converging lens is always positive. [ ] The focal length for a diverging lens is always negative.

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