This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Physics Part I > Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 10 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. Which of these describes a small range in the electromagnetic spectrum? A) Radiation. B) Electricity. C) Light. D) Gravity. Show Answer Correct Answer: C) Light. 3. 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. 4. Explain the concept of polarization of light. A) Polarization of light is the reflection of light off surfaces. B) Polarization of light is the speed of light in a vacuum. C) Polarization of light refers to the color of light waves. D) Polarization of light is the orientation of light waves in a specific direction. Show Answer Correct Answer: D) Polarization of light is the orientation of light waves in a specific direction. 5. Which waves have some electrical properties and some magnetic properties? A) Electromagnetic waves. B) Transverse waves. C) Mechanical waves. D) Longitudinal waves. Show Answer Correct Answer: A) Electromagnetic waves. 6. Light in the form of a particle that has a discrete amount of energy is called a ..... A) Muon. B) Atom. C) Charm. D) Photon. Show Answer Correct Answer: D) Photon. 7. Which type of electromagnetic wave is commonly used in medical imaging to view inside the human body? A) Microwaves. B) Infrared. C) Radio waves. D) X-rays. Show Answer Correct Answer: D) X-rays. 8. Which rays can be felt as heat? A) Ultraviolet Radiation. B) Infrared Radiation. C) Microwaves. D) X-Rays. Show Answer Correct Answer: B) Infrared Radiation. 9. Which type of EM wave has wavelength similar to the size of a 1 Peso coin? A) Visible light. B) Microwave. C) Ultraviolet. D) Infrared. Show Answer Correct Answer: B) Microwave. 10. 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. 11. Which electromagnetic wave enables your body to produce vitamin D? A) Ultraviolet radiation. B) Infrared waves. C) Radio waves. D) Visible light. Show Answer Correct Answer: A) Ultraviolet radiation. 12. What question could be asked to determine the difference between a sound or a light wave? A) How are the waves produced?. B) Do the waves need a medium to travel in?. C) In what direction does the wave travel?. D) What are the waves carrying?. Show Answer Correct Answer: B) Do the waves need a medium to travel in?. 13. What color appears at the highest frequency of light we can see? A) Blue. B) Violet. C) Green. D) Red. Show Answer Correct Answer: B) Violet. 14. 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. 15. Which of the following electromagnetic wave has the smallest frequency? A) Visible light. B) X-ray. C) Gamma-ray. D) Ultraviolet ray. Show Answer Correct Answer: C) Gamma-ray. 16. When you see the leaves of a green plant, the leaves are absorbing all the colors of light except for: A) Red. B) Green. C) Blue. D) White. Show Answer Correct Answer: B) Green. 17. If you were to travel at the Speed of Light, how fast could you orbit around the Earth? A) 5.7 times in one second. B) 6.5 times in half a second. C) 7.5 times in one second. D) 8.3 times in two seconds. Show Answer Correct Answer: C) 7.5 times in one second. 18. 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. 19. A student observes a galaxy with a central bulge and arms that wind outward. What type of galaxy is this? A) Dwarf. B) Elliptical. C) Spiral. D) Irregular. Show Answer Correct Answer: C) Spiral. 20. 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. 21. Cycles (or periods) per second is A) Wavelength. B) Speed. C) Frequency. D) None of the above. Show Answer Correct Answer: C) Frequency. 22. 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. 23. 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. 24. 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. 25. Which of the following creates EM waves? A) Uncharged particles. B) A charge at rest. C) Accelerating charges. D) A charge moving with constant velocity. Show Answer Correct Answer: C) Accelerating charges. 26. 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. 27. Name one example of what transfers electric energy from one circuit to another circuit. A) Transformer. B) Generator. C) Voltmeter. D) Hosepipe. Show Answer Correct Answer: A) Transformer. 28. 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. 29. EM Waves with the longest wavelength A) Infrared. B) Radio. C) X-ray. D) Gamma. Show Answer Correct Answer: B) Radio. 30. 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. 31. 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. 32. 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. 33. Satellite Communication is an application of what type of wave? A) X-ray. B) Infrared. C) Radio wave. D) Microwave. Show Answer Correct Answer: C) Radio wave. 34. 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. 35. What type of electromagnetic radiation is used in remote controls for televisions? A) Infrared waves. B) Microwaves. C) Radio waves. D) Ultraviolet waves. Show Answer Correct Answer: A) Infrared waves. 36. What electromagnetic wave used in nuclear medicine? A) Microwave. B) Gamma rays. C) Ultraviolet rays. D) Infrared. Show Answer Correct Answer: B) Gamma rays. 37. Which electromagnetic waves are used in ovens and cell phone communications? A) Gamma rays. B) Infrared rays. C) Microwaves. D) Ultraviolet rays. Show Answer Correct Answer: C) Microwaves. 38. 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. 39. 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. 40. What type of electromagnetic waves are used to cook food, predict the weather, and for communications? A) Radio waves. B) Ultraviolet. C) Microwaves. D) Visible light. Show Answer Correct Answer: C) Microwaves. 41. Speed:What do electromagnetic waves travel slowest in A) Gasses. B) Liquids. C) Vaccum. D) Solids. Show Answer Correct Answer: D) Solids. 42. 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. 43. Which color of visible light has the highest frequency? A) Red. B) Violet. C) Blue. D) Green. Show Answer Correct Answer: B) Violet. 44. 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. 45. 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. 46. 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. 47. 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. 48. This wave has a frequency. A) Electromagentic. B) Mechanical. C) Both. D) None of the above. Show Answer Correct Answer: C) Both. 49. List three applications of electromagnetic waves in daily life. A) 1. Radio communication 2. Microwave cooking 3. X-ray imaging. B) Solar panel energy. C) Hydraulic press function. D) Wind turbine operation. Show Answer Correct Answer: A) 1. Radio communication 2. Microwave cooking 3. X-ray imaging. 50. In a vacuum, all electromagnetic waves have the same A) Amplitude. B) Frequency. C) Speed. D) Wavelength. Show Answer Correct Answer: C) Speed. 51. Which electromagnetic waves is not harmful to human beings? A) X-ray. B) Visible light. C) Microwaves. D) Gamma ray. Show Answer Correct Answer: B) Visible light. 52. 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. 53. Thermal scanners are used to show temperature variation of the body. This detects ..... radiation emitted by all objects. A) X rays. B) Visible. C) Infrared. D) Ultraviolet. Show Answer Correct Answer: C) Infrared. 54. Gamma rays are the shortest waves in the electromagnetic spectrum and as a result, they have what kind of energy? A) No energy. B) The most energy. C) Moderate energy. D) The least energy. Show Answer Correct Answer: B) The most energy. 55. 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) 3.0 x 10$^{15}$ Hz. B) 2.0 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. 56. How many satellites does the GPS system use to determine your location? A) 4. B) 7. C) 2. D) 3. Show Answer Correct Answer: A) 4. 57. 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. 58. The number of waves that pass in a certain amount of time is called A) Crest. B) Wavelength. C) Frequency. D) Amplitude. Show Answer Correct Answer: C) Frequency. 59. Longest wavelength of light A) Red. B) Gamma. C) Radio. D) Infrared. Show Answer Correct Answer: C) Radio. 60. What is the wavelength of a microwave transmission at 1, 575.42 MHz? A) $1.9\times10^{-14}$. B) $0.19$. C) $1.9\times10^{-9}$. D) $1900$. Show Answer Correct Answer: B) $0.19$. ← PreviousNext →Related QuizzesScience QuizzesClass 12 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books