1. Which has the greatest energy among the colors in a rainbow? A. green B. orange C. red D. violet 2. Among rainbow colors, which has the least energy? A. green B. red C. violet D. yellow . 3. Which describes violet color? A. Highest frequency C. Lowest wavelength B. Longest frequency D. Shortest wavelength 4. For light , which property changes with color? I. Frequency II. period III. wavelength A. l only B. I and II C. I and III D. lll only 5. Which of the following arrangements of sunshine colors show DECREASING wavelength? A. Red, orange, yellow, green, blue, indigo, violet B. Red, yellow, green, orange, violet, blue, indigo C. Violet, blue, green, orange, red, indigo, yellow D. Violet, indigo, blue, green, orange, yellow, red 6. Which the following is true about the relationship between frequency and energy? A. Frequency of the color of sunshine and energy aren't related. B. The frequency of the color of sunshine increases, its energy decreases. C. The frequency of the color of sunshine decreases, the energy increases. D.. The frequency of the colour of sunshine increases, the energy also increases. 7. Is light dangerous? A. Yes, if use improperly. B. No, always safe C. Sometimes D. Maybe 8. What is the importance of light in our everyday life? A. It helps us to see things. B. It is used in power satellites and space stations C. It is used in many electronic appliances. D. All of the above. 9. Which of the following statements is INCORRECT? A. Frequency and wavelength are inversely related. B. High frequency light corresponds to short wavelength. C. Low frequency light corresponds to long wavelength. D. Short wavelength corresponds to low frequency. 10. Which among the members of the electromagnetic spectrum is considered as visible? A. Gamma rays B. Infrared rays C. Light wave D. Microwave
