4. Which two waves lie at the beginning and end of the electromagnetic spectrum? a. gamma ray and X-ray b. microwave and ultraviolet rays c. radio wave and gamma ray d. radio waves and microwaves 5. What is the frequency range of ultraviolet radiation? a. 3.5x109 - 3x1011 Hz b. 3.5x1011 - 3x1014 Hz c. 7.5x1014 - 3x1016 Hz d. 7.5x1016 - 3x1019 Hz 6. Visible light is the only EM wave that can be seen by our naked eye, What is the color of light if it has a frequency of 4.5 x1014 Hz? a. blue b. green c. red d. yellow 7. Which of the following is correctly arranged from longest to shortest wavelength? a. gamma ray, radio wave, infrared b. microwave, X-ray, gamma ray c. ultraviolet, visible light, radio wave d. x-ray, gamma ray, ultraviolet 8. Which type of EM wave has wavelength similar to the size of a 1 Peso coin? a. infrared b. microwave c. ultraviolet d. visible light 9. Which electromagnetic wave can travel the least distances because it has a wavelength range of less than 1x10-11 meters but has the highest energy? a. gamma ray b. microwave c. radio wave d. x-ray 10. In the electromagnetic spectrum, which has the longest wavelength? a. gamma ray b. radio wave c. ultraviolet d. visible light 11. What happens to the frequency of electromagnetic wave if its wavelength increases? a. decreases b. doubles c. increases as well d. remains the same