This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves – Quiz 23 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 23 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A light wave spreads out in all directions from the source. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 2. When stargazing the stars appear to move from ..... A) East to west. B) West to east. C) North to west. D) South to west. Show Answer Correct Answer: A) East to west. 3. What does GPS stand for? A) Geographical Place System. B) Graphic Photo System. C) Global Positioning System. D) Geology Passage System. Show Answer Correct Answer: C) Global Positioning System. 4. Sound waves are NOT ..... A) Electromagnetic Waves. B) Waves. C) Mechanical Waves. D) Compression. Show Answer Correct Answer: A) Electromagnetic Waves. 5. What is the primary difference between electromagnetic waves and mechanical waves? A) Electromagnetic waves require a medium to travel. B) Mechanical waves can travel through a vacuum. C) Electromagnetic waves can travel through a vacuum. D) Mechanical waves have higher frequencies than electromagnetic waves. Show Answer Correct Answer: C) Electromagnetic waves can travel through a vacuum. 6. Two light waves have the same amplitude. The wave with the higher frequency carries ..... energy. A) Less. B) More. C) The same amount of. D) None of the above. Show Answer Correct Answer: B) More. 7. Which of the following waves are used in radio and television ..... A) Micro waves. B) Radio waves. C) X-rays. D) Infrared light. Show Answer Correct Answer: B) Radio waves. 8. This is the term that describes when light passes through matter. A) Transmission. B) Transparent. C) Translucent. D) Opaque. Show Answer Correct Answer: A) Transmission. 9. It has a long wavelength which can penetrate the flesh but not the bones. A) Radio waves. B) Visible light. C) Gamma Rays. D) X-rays. Show Answer Correct Answer: D) X-rays. 10. Antenna of a radio detects ..... ..... A) Micro waves. B) TV waves. C) Radio waves. D) Directional waves. Show Answer Correct Answer: C) Radio waves. 11. Intensity is the ..... at which a wave's energy flows through a given unit of area. A) Rate. B) Speed. C) Frequency. D) Amplitude. Show Answer Correct Answer: A) Rate. 12. What is wavelength measured in per second? A) Hertz. B) Lanta. C) Inches. D) Crest to crest. Show Answer Correct Answer: A) Hertz. 13. Which of the following best describes the propagation of electromagnetic waves? A) They can only propagate in a vacuum. B) They can propagate in both a vacuum and a medium. C) They can only propagate in a medium. D) They cannot propagate in a vacuum. Show Answer Correct Answer: B) They can propagate in both a vacuum and a medium. 14. Which color of visible light has the lowest frequency? A) Red. B) Green. C) Blue. D) Violet. Show Answer Correct Answer: A) Red. 15. What is the description for x rays? A) Used in cell phones. B) Allows you to see. C) Causes skin to tan. D) Can see broken bones. Show Answer Correct Answer: D) Can see broken bones. 16. Which of these describes a small range in the electromagnetic spectrum? A) Gravity. B) Radiation. C) Electricity. D) Light. Show Answer Correct Answer: D) Light. 17. Electromagnetic waves have an extensive range of waves that differ in the frequencies and the wavelengths known as electromagnetic spectrum. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 18. Explain the concept of polarization of light. A) Polarization of light is the orientation of light waves in a specific direction. B) Polarization of light refers to the color of light waves. C) Polarization of light is the reflection of light off surfaces. D) Polarization of light is the speed of light in a vacuum. Show Answer Correct Answer: A) Polarization of light is the orientation of light waves in a specific direction. 19. What happens to the wavelength as frequency increases? A) Wavelength decreases. B) Wavelength increases. C) Wavelength stays the same. D) None of the above. Show Answer Correct Answer: A) Wavelength decreases. 20. Which waves have some electrical properties and some magnetic properties? A) Longitudinal waves. B) Transverse waves. C) Mechanical waves. D) Electromagnetic waves. Show Answer Correct Answer: D) Electromagnetic waves. 21. Light in the form of a particle that has a discrete amount of energy is called a ..... A) Photon. B) Atom. C) Muon. D) Charm. Show Answer Correct Answer: A) Photon. 22. Which type of electromagnetic wave is commonly used in medical imaging to view inside the human body? A) Radio waves. B) X-rays. C) Microwaves. D) Infrared. Show Answer Correct Answer: B) X-rays. 23. Which rays can be felt as heat? A) X-Rays. B) Infrared Radiation. C) Ultraviolet Radiation. D) Microwaves. Show Answer Correct Answer: B) Infrared Radiation. 24. 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. Show Answer Correct Answer: B) Microwave. 25. Heinrich Hertz ..... A) Showed that light is a wave trough experiments on interference of light. B) Generated a different kind of electromagnetic wave that is radio wave. C) All the above. D) None of the above. Show Answer Correct Answer: B) Generated a different kind of electromagnetic wave that is 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