This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves – Quiz 25 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 25 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Visible light rays have more energy than Ultraviolet rays. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 2. What type of electromagnetic radiation is used in remote controls for televisions? A) Radio waves. B) Microwaves. C) Infrared waves. D) Ultraviolet waves. Show Answer Correct Answer: C) Infrared waves. 3. What electromagnetic wave used in nuclear medicine? A) Microwave. B) Infrared. C) Gamma rays. D) Ultraviolet rays. Show Answer Correct Answer: C) Gamma rays. 4. What color has the shortest wavelength and highest frequency? A) Violet. B) Orange. C) Red. D) Blue. Show Answer Correct Answer: A) Violet. 5. Which electromagnetic waves are used in ovens and cell phone communications? A) Infrared rays. B) Ultraviolet rays. C) Microwaves. D) Gamma rays. Show Answer Correct Answer: C) Microwaves. 6. Which statement is true about visible light? A) Humans cannot see any light from the electromagnetic spectrum. B) Visible light makes up a small part of the electromagnetic spectrum. C) Visible light has a frequency equal to that of gamma rays. D) Humans can see visible light only as black light. Show Answer Correct Answer: B) Visible light makes up a small part of the electromagnetic spectrum. 7. If a wave has a short wavelength, it will have ..... energy. A) High. B) Medium. C) Low. D) None of the above. Show Answer Correct Answer: A) High. 8. What type of electromagnetic waves are used to cook food, predict the weather, and for communications? A) Microwaves. B) Visible light. C) Ultraviolet. D) Radio waves. Show Answer Correct Answer: A) Microwaves. 9. Speed:What do electromagnetic waves travel slowest in A) Solids. B) Liquids. C) Gasses. D) Vaccum. Show Answer Correct Answer: A) Solids. 10. When a light wave is absorbed into a medium what happens to the energy from the wave? A) It changes to heat energy. B) It turns into gravity. C) It becomes a stronger light wave. D) None of the above. Show Answer Correct Answer: A) It changes to heat energy. 11. Which color of visible light has the highest frequency? A) Red. B) Green. C) Blue. D) Violet. Show Answer Correct Answer: D) Violet. 12. Cellphone is one of the application of waves. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 13. Which electromagnetic waves are used in devices such as heat lamps & TV remote controls? A) Ultraviolet rays. B) Microwaves. C) Infrared rays. D) None of the above. Show Answer Correct Answer: C) Infrared rays. 14. If the amplitude increases, the energy of the wave: A) Increases. B) Decreases. C) Stays the same. D) None of the above. Show Answer Correct Answer: A) Increases. 15. Which statement BEST describes the relationship between visible light and the electromagnetic spectrum? A) Visible light and the electromagnetic spectrum are different names for the same phenomenon. B) Visible light occupies about half of the electromagnetic spectrum. C) Visible light is a narrow band in the electromagnetic spectrum. D) Visible light and the electromagnetic spectrum have a small area of overlap. Show Answer Correct Answer: C) Visible light is a narrow band in the electromagnetic spectrum. 16. This wave has a frequency. A) Electromagentic. B) Mechanical. C) Both. D) None of the above. Show Answer Correct Answer: C) Both. 17. List three applications of electromagnetic waves in daily life. A) Hydraulic press function. B) Solar panel energy. C) Wind turbine operation. D) 1. Radio communication 2. Microwave cooking 3. X-ray imaging. Show Answer Correct Answer: D) 1. Radio communication 2. Microwave cooking 3. X-ray imaging. 18. In a vacuum, all electromagnetic waves have the same A) Wavelength. B) Speed. C) Frequency. D) Amplitude. Show Answer Correct Answer: B) Speed. 19. Which electromagnetic waves is not harmful to human beings? A) Gamma ray. B) X-ray. C) Microwaves. D) Visible light. Show Answer Correct Answer: D) Visible light. 20. Light acts as ..... A) A wave. B) Both a wave and a particle. C) A particle. D) Neither a wave or a particle. Show Answer Correct Answer: B) Both a wave and a particle. 21. Thermal scanners are used to show temperature variation of the body. This detects ..... radiation emitted by all objects. A) Infrared. B) X rays. C) Ultraviolet. D) Visible. Show Answer Correct Answer: A) Infrared. 22. Gamma rays are the shortest waves in the electromagnetic spectrum and as a result, they have what kind of energy? A) The least energy. B) Moderate energy. C) The most energy. D) No energy. Show Answer Correct Answer: C) The most energy. 23. What is the frequency of highly energetic ultraviolet radiation that hasa wavelength of 125 nm? V= 3.0 x 10$^{8}$ m/s $f=\frac{v}{\lambda}$ A) 2.0 x 10$^{15}$ Hz. B) 3.0 x 10$^{15}$ Hz. C) 3.40 x 10$^{15}$ Hz. D) 2.40 x 10$^{15}$ Hz. Show Answer Correct Answer: D) 2.40 x 10$^{15}$ Hz. 24. How many satellites does the GPS system use to determine your location? A) 2. B) 3. C) 4. D) 7. Show Answer Correct Answer: C) 4. 25. Wavelength = ..... A) Distance from crest to trough. B) Distance from crest to crest. C) Distance from start to finish. D) None of the above. Show Answer Correct Answer: B) Distance from crest to crest. ← 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