NOTE: ANSWERS MUST BE ORIGINAL AND NOT COPIED ON THE INTERNET, MUST BE DIGITALIZED NOT HANDWRITTEN BECAUSE I AM HAVING A HARD TIME SEEING MESSY HANDWRITING

Direction: Choose the letter of the correct answer. Provide a brief explanation of why you choose the answer.

1. Why does a blue t-shirt appear blue? a. Blue is absorbed by the t-shirt c. . Blue is reflected by the t-shirt b. Blue is emitted by the t-shirt d. . Blue is refracted by the t-shirt 2. E=hf is an equation that describes the relationship between energy (E) and frequency of light (f). What will happen to the energy of light as the frequency goes higher? It a. goes higher b. goes lower c. remains the same d. undetermined 3. Under which type of light do we easily get sunburned? a. infrared b. microwave light c. ultraviolet light d. white light 4. Which property of light is responsible for white clouds, blue sky and red sunset? a. Dispersion b. Interference c. Scattering d. Diffraction 5. Which of the following situations exemplifies the dispersion property of light? a. The image of the flower in a mirror c. The swaying movement of coin under water b. The sparkling glow of the diamond ring d. The rainbow in the sky after the rain shower 6. Explain when can diffraction of light occur? a. When photons oscillate in certain directions are absorbed, while others that oscillate in line with the filter pass through. b. when light strikes the boundary between substances at an angle greater than the critical angle. c. when waves spread and bend as they pass through small openings or around barriers. d. when two or more waves overlap or intersect. 7. What effect does interference of light waves have on soap bubbles? a. They become larger c. They produced different colors at the surface. b. They become heavier d. They produced images of objects like a mirror.8. After a rainstorm, a rainbow may appear in the sky. Which statement explains this observation? a. . The colors of the rainbow come from raindrops spread in the atmosphere b. The raindrops act as prisms separating sunlight into spectrum of colors. c. The white clouds are like prisms which are composed of different colors of the rainbow d. When the incident light is reflected by the ground towards the clouds, it separates them into different colors. 9. Suppose you are wearing a blue shirt. When you look at the mirror, you observe that the color of your shirt in the image is also blue. What does this tell you about the frequency of the incident ray compared to the frequency of the reflected ray? a. The frequency of light remains the same. b. The frequency of the incident ray is greater than that of the reflected ray. c. The frequency of the reflected ray is greater than that of the incident ray. d. It cannot be determined.10. What happens to the speed of a light ray when it moves from water into air? a. it slows down c. it remains the same b. it speeds up d. it cannot be determined 11. Yellow light has a longer wavelength than green light. Which color of light has the higher frequency? a. yellow b. green c. It is the same for both. d. It cannot be determined. 12. Which statement is not true about light? a. It is an electromagnetic wave. b. It travels in vacuum at 3x108 m/s. c. It has a dual nature: as a particle and a wave. d. It travels the path that requires the longest time. 13. A quantum of light energy is called a/an a. index of refraction b. intensity c. photon d. wave packet 14. The splitting of white light into its constituent colors is called a. diffraction b. dispersion c. reflection d. refraction 15. Who proposed the electromagnetic theory of light? a. Albert Einstein c. Isaac Newton b. James Clerk Maxwell d. Thomas Young