This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 24 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which electromagnetic wave enables your body to produce vitamin D? A) Radio waves. B) Infrared waves. C) Ultraviolet radiation. D) Visible light. Show Answer Correct Answer: C) Ultraviolet radiation. 2. What question could be asked to determine the difference between a sound or a light wave? A) What are the waves carrying?. B) How are the waves produced?. C) In what direction does the wave travel?. D) Do the waves need a medium to travel in?. Show Answer Correct Answer: D) Do the waves need a medium to travel in?. 3. What color appears at the highest frequency of light we can see? A) Blue. B) Green. C) Red. D) Violet. Show Answer Correct Answer: D) Violet. 4. Electromagnetic waves can not travel through vacuum ..... A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 5. EM waves usually travel slowest in gasses and fastest in solids. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 6. Which of the following electromagnetic wave has the smallest frequency? A) Visible light. B) Ultraviolet ray. C) X-ray. D) Gamma-ray. Show Answer Correct Answer: D) Gamma-ray. 7. When you see the leaves of a green plant, the leaves are absorbing all the colors of light except for: A) White. B) Blue. C) Green. D) Red. Show Answer Correct Answer: C) Green. 8. If you were to travel at the Speed of Light, how fast could you orbit around the Earth? A) 6.5 times in half a second. B) 5.7 times in one second. C) 8.3 times in two seconds. D) 7.5 times in one second. Show Answer Correct Answer: D) 7.5 times in one second. 9. What is the speed of EM waves through diamond? A) 124, 000 m/h. B) 124, 000 m/s. C) 124, 000 km/s. D) 124, 000 km/h. Show Answer Correct Answer: C) 124, 000 km/s. 10. Which material does sound travel the fastest? A) Solid. B) Liquid. C) Gases. D) None of the above. Show Answer Correct Answer: A) Solid. 11. A student observes a galaxy with a central bulge and arms that wind outward. What type of galaxy is this? A) Elliptical. B) Spiral. C) Irregular. D) Dwarf. Show Answer Correct Answer: B) Spiral. 12. Which statement accurately describes what a prism does? A) A prism refracts and separates white light into the individual colors of light. B) A prism reflects white light until the individual colors of light are produced. C) A prism absorbs certain wavelengths of visible light on one side and transmits them out of the other end. D) A prism transmits light through its structure and separates white light into the individual colors of light. Show Answer Correct Answer: A) A prism refracts and separates white light into the individual colors of light. 13. Cycles (or periods) per second is A) Wavelength. B) Speed. C) Frequency. D) None of the above. Show Answer Correct Answer: C) Frequency. 14. Where do radio waves fall on the electromagnetic spectrum? Radio waves- A) Have the same wavelengths as visible light. B) Radio waves fall on the high-frequency side of visible light. C) Fall on the short-wavelength side of visible light. D) Fall on the low-frequency side of visible light. Show Answer Correct Answer: D) Fall on the low-frequency side of visible light. 15. What part of the wave determines the color we see? A) Amplitude. B) Wavelength. C) All the above. D) None of the above. Show Answer Correct Answer: B) Wavelength. 16. What is a vacuum? A) A space with only air in it. B) A space with NO matter at all present. C) A machine you use to do your chores. D) None of the above. Show Answer Correct Answer: B) A space with NO matter at all present. 17. Which of the following creates EM waves? A) A charge at rest. B) Uncharged particles. C) A charge moving with constant velocity. D) Accelerating charges. Show Answer Correct Answer: D) Accelerating charges. 18. This wave can travel in space where there is no matter. A) Electromagentic. B) Mechanical. C) Both. D) None of the above. Show Answer Correct Answer: A) Electromagentic. 19. Name one example of what transfers electric energy from one circuit to another circuit. A) Generator. B) Voltmeter. C) Transformer. D) Hosepipe. Show Answer Correct Answer: C) Transformer. 20. Electromagnetic waves need a medium to travel through. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 21. EM Waves with the longest wavelength A) Radio. B) Infrared. C) Gamma. D) X-ray. Show Answer Correct Answer: A) Radio. 22. A device that produces a narrow beam of light of one wavelength is a ..... A) Microwave oven. B) Laser. C) Radar. D) TV. Show Answer Correct Answer: B) Laser. 23. Which type of radio waves can travel great distances because they bounce off the atmosphere? A) FM. B) AM. C) All the above. D) None of the above. Show Answer Correct Answer: B) AM. 24. Which of the following lists the electromagnetic waves in order of decreasing frequency? A) X-rays, microwaves, infrared rays. B) UV rays, visible light, x-rays. C) Infrared rays, microwaves, radio waves. D) None of the above. Show Answer Correct Answer: C) Infrared rays, microwaves, radio waves. 25. Satellite Communication is an application of what type of wave? A) Infrared. B) Microwave. C) Radio wave. D) X-ray. Show Answer Correct Answer: C) Radio wave. ← PreviousNext →Related QuizzesClass 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 1Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 2Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 3Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 4Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 5Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 6Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 7Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 8Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 9Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books