Direction: Completion Type. Write the word or expression which best completes the meaning of the following statements.
1._____is the bending of light as it passes at an angle from one medium into another of different optical density.
2. The distance between the principal focus and the optical center of the lens is_____
3._____is the kind of lens that will always form a virtual, erect and smaller image.
4. The principle involved in the formation of image on lenses is_____
5. An enlarged, erect and real image is formed by_____a lens.
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Answer:
1. Refraction
2. focal length
3. Concave lens
4. converging
5. erect
Answer:
1. refraction
2. focal length
3. concave lenses
4. refraction of the rays
5. concave mirror