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Questions and Answers
What is the phenomenon that causes the formation of a rainbow when light is refracted, reflected, and dispersed in water droplets?
What is the phenomenon that causes the formation of a rainbow when light is refracted, reflected, and dispersed in water droplets?
- Dispersion (correct)
- Reflection
- Refraction
- Diffraction
What type of lens is used to correct the condition of myopia (nearsightedness)?
What type of lens is used to correct the condition of myopia (nearsightedness)?
- Bifocal lens
- Cylindrical lens
- Concave lens (correct)
- Convex lens
What is the speed of light in a vacuum?
What is the speed of light in a vacuum?
- 400,000,000 meters per second
- 200,000,000 meters per second
- 300,000,000 meters per second
- 299,792,458 meters per second (correct)
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