Light and Optics Worksheet
A Grade 12 physics worksheet covering key concepts in light and optics, including reflection, refraction, lenses, and wave phenomena.
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Light and Optics Worksheet
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Read each question carefully and answer to the best of your ability. Show all work for calculations.
1. Which of the following phenomena best explains why a spoon appears bent when placed in a glass of water?
Reflection
Refraction
Diffraction
Polarization
2. A convex lens is used to form a real, inverted image. If the object is placed at a distance greater than twice the focal length, the image will be:
Magnified and virtual
Reduced and virtual
Magnified and real
Reduced and real
3. The bending of light as it passes from one medium to another is called .
4. The angle of incidence is equal to the angle of according to the Law of Reflection.
5. A lens diverges parallel rays of light.
6. All electromagnetic waves travel at the same speed in a vacuum.
True
False
7. A virtual image can be projected onto a screen.
True
False
8. Draw a ray diagram for an object placed between F and 2F of a convex lens, and describe the characteristics of the image formed.
9. Explain the concept of total internal reflection and provide a real-world application.
Match the term on the left with its definition on the right.
10. Dispersion
a. The spreading of light into its constituent colors.
11. Diffraction
b. The bending of waves around obstacles or through an opening.
12. Interference
c. The superposition of two or more waves resulting in a new wave pattern.
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