4. Which of the following is not an electromagnetic wave? A sound B microwaves C. infrared D. X-ray 5. The frequency of red light is that of a green light? A greater than B. less than C. the same as D. greater than, or less than, depending on a source of light 6. The frequency of blue light is that of green light A greater than B. less thanC.the same as D greater than, or less than depending on a source of light 7. Which two primary colors of light can be added to produce yellow? A Blue and green B Red and blue C. Pink and green D Red and green 8. For visible light, which property of visible electromagnetic waves changes with color? A. Amplitude B. Frequency C. Frequency and wavelength D. Amplitude and frequency 9 What is the color of visible light with the highest frequency? A. Red B Blue C Yellow D. Violet 10. What is the color of visible light with the lowest frequency? A Orange B. Red C. Green D. Violet 11. Which of the following shows an increasing order of frequency in the visible spectrum? A violet, indigo, blue, green B. green, blue, indigo, violet C. blue, green, indigo, violet D. indigo, violet, green, blue 12 What happens to the intensity of illumination as the square of the distance from the source of light increases? A remains the same B increases C. deceases D. cannot be determined 13. Which statement is true? A Radio waves in the AM band are not electromagnetic waves B Speed of light in air is lower than in glass C. Some electromagnetic waves will pass through walls that light cannot penetrate D Electromagnetic waves can't travel in perfect vacuum14. How is energy related to frequency? . A.s the energy increnses, the frequency decreases B. As the energy increases, the frequency decreases C. As the energy increases, the frequency increases D. As the energy increases, the frequency cannot be determined 15. Which of the following is NOT a property of light? A. Brightness B. Color C. Energy D. Intensity 16. If the wave carries higher amount of energy, what will be its frequency? A higher B. lower C. the same D. none of these 17. In the visible spectrum, which color has the greatest amount of energy? A blueB.green C. red D. violet 18. White light is made of a band of seven colors (ROYGBIV) called A dispersion B. visible spectrum C. illumination D.prism19. When ultraviolet light reflects from a violet surface, we see A. red B violet C. white D. black 20. It is a rectangular glass block? A. prism B. spectrum C. dispersion D. illumination ​