Refraction Online Test on July 29, 2023 Get link Facebook X Pinterest Email Other Apps Refraction MCQ Worksheet Refraction MCQ Worksheet Easy Level 1. When light travels to air from glass, what happens to its speed? It increases It decreases It remains the same 2. What is the phenomenon where light changes direction as it passes from one medium to another? Reflection Refraction Diffraction 3. What is the refractive index of a medium that shows no bending of light? 0 1 Infinity 4. Which type of lens is thinner at the center than at the edges? Convex lens Concave lens Biconvex lens 5. The bending of light as it passes through a prism is an example of: Dispersion Diffraction Total Internal Reflection Medium Level 6. A ray of light passing from water to air is incident at an angle of 45 degrees with the normal. What will be the angle of refraction? 45 degrees Greater than 45 degrees Less than 45 degrees 7. The refractive index of a medium is defined as: The ratio of the speed of light in vacuum to the speed of light in the medium The ratio of the speed of light in the medium to the speed of light in vacuum The ratio of the speed of light in the medium to the speed of light in air 8. In which of the following media does light travel the fastest? Air Water Glass 9. The phenomenon of a pencil appearing bent in a glass of water is due to: Reflection Refraction Diffraction 10. Which type of lens is used to correct nearsightedness? Convex lens Concave lens Biconvex lens Hard Level 11. Which of the following statements is true regarding the critical angle of refraction? It is the angle of incidence at which the light is not refracted It is the angle of refraction at which the light is not refracted It is the angle of incidence at which the light undergoes total internal reflection 12. The splitting of white light into its component colors is known as: Dispersion Diffraction Scattering 13. The bending of light as it passes through a lens is due to: Dispersion Diffraction Refraction 14. The refractive index of a medium depends on: The wavelength of light The speed of light in the medium Both the wavelength and the speed of light in the medium 15. When light passes from a rarer to a denser medium, the angle of refraction: Increases Decreases Remains the same