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 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 11 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The color an object appears depends on what two things A) Pigments in it and the light it is in. B) The transparency of the object. C) Does it produce dispersion. D) Does it diffuse reflect light. Show Answer Correct Answer: A) Pigments in it and the light it is in. 2. Electromagnetic waves come in various forms.*Visible light*Infrared*Radio*X-rays A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 3. What is an example of a wave with a long wavelength and low frequency? A) Radio. B) Visible light. C) Infrared. D) Gamma rays. Show Answer Correct Answer: A) Radio. 4. Microwaves carry high energy that can pass through the skin and tissues to generate structures inside the body. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 5. Device that transmits radio signals at one frequency and receives radio signals at a different frequency, allowing a user to talk and listen at the same time A) Digital signal. B) Modulation. C) Transceiver. D) Photon. Show Answer Correct Answer: C) Transceiver. 6. Which waves are the type that can give us suntans and sunburns? A) X-rays. B) Infrared radiation. C) Radio waves. D) Ultraviolet radiation. Show Answer Correct Answer: D) Ultraviolet radiation. 7. Visible light can be separated into various colors to form a (an) ..... A) Thermogram. B) Spectrum. C) X-Ray Picture. D) MRI. Show Answer Correct Answer: B) Spectrum. 8. All electromagnetic waves travel at the same speed. What speed do they travel at? A) 162 mph. B) Light speed. C) The speed of light. D) 75 mph. Show Answer Correct Answer: C) The speed of light. 9. Acoustic waves are also called ..... A) Mechanical waves. B) Seismic waves. C) All the above. D) None of the above. Show Answer Correct Answer: A) Mechanical waves. 10. Which of the following is NOT a tool used to observe the electromagnetic spectrum? A) Spectrometer. B) Electron microscope. C) X-ray telescope. D) Radio telescope. Show Answer Correct Answer: B) Electron microscope. 11. Used to treat cancer A) Microwaves. B) X rays. C) Radio Waves. D) Gamma rays. E) None of the above. Show Answer Correct Answer: D) Gamma rays. 12. The distance between one wave crest to the next is the definition of which word? A) Infrared. B) Spectrum. C) Wavelength. D) Equilibrium. Show Answer Correct Answer: C) Wavelength. 13. When an earthquake occurs, what is the resulting direction of the surface waves it generates? A) Parallel. B) Circular. C) Opposite. D) Perpendicular. Show Answer Correct Answer: B) Circular. 14. In a wave machine, a wave would pass fastest through which one? A) Bare skewers. B) Skewers with spice drops. C) Skewers with orange slices. D) None of the above. Show Answer Correct Answer: A) Bare skewers. 15. Factors that affect a wave's speed are ..... A) Wavelength & Frequency. B) Amplitude & Tension. C) Wavelength & Energy. D) Frequency & Amplitude. Show Answer Correct Answer: A) Wavelength & Frequency. 16. If a wave has a long wavelength, it will have ..... energy. A) High. B) Medium. C) Low. D) None of the above. Show Answer Correct Answer: C) Low. 17. Sound travels fastest through what type of medium? A) Cold air. B) Wooden desk. C) Pond water. D) Iced tea. Show Answer Correct Answer: B) Wooden desk. 18. Two light waves have the same wavelength. The wave with the greater amplitude carries ..... energy. A) Less. B) More. C) Same amount. D) None of the above. Show Answer Correct Answer: B) More. 19. Which statement below correctly describes the speed of light? A) The speed of light is fast, but not faster than a fighter jet. B) The speed of light is slower than the speed of sound. C) The speed of light is relatively slow compared to how objects travel in the universe. D) Nothing in the universe can travel faster than the speed of light. Show Answer Correct Answer: D) Nothing in the universe can travel faster than the speed of light. 20. Why is the word 'AMBULANCE' laterally reversed on the vehicle? A) To help drivers recognize the vehicle faster and move out of its way. B) To make the word appear correctly when reflected in rear-view mirrors. C) To improve visibility and help drivers respond promptly to emergencies. D) To ensure that drivers ahead can quickly identify it using their rearview mirrors. Show Answer Correct Answer: B) To make the word appear correctly when reflected in rear-view mirrors. 21. All matter emits A) Electromagnetic energy. B) Magnetic energy. C) Sound. D) All of these. Show Answer Correct Answer: A) Electromagnetic energy. 22. Shortest wavelength of light A) Gamma. B) Ultraviolet. C) Violet. D) Radio. Show Answer Correct Answer: A) Gamma. 23. What phenomenon explains the bending of light as it passes from air into water? A) Dispersion. B) Reflection. C) Refraction. D) Diffraction. Show Answer Correct Answer: C) Refraction. 24. Infrared waves have longer wavelengths than visible light. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. Strongest ionizing radiation is X-ray. A) TRUE. B) FALSE. C) MAYBE. D) None of the above. Show Answer Correct Answer: B) FALSE. 26. FM signals travel as changes in ..... A) The amplitude of the wave. B) The frequency of the wave. C) The speed of the wave. D) The loudness of the wave. Show Answer Correct Answer: B) The frequency of the wave. 27. Arrange the electromagnetic waves in order of increasing frequency A) Ultraviolet rays, infrared rays, microwaves, gamma rays. B) Microwaves, gamma rays, infrared rays, ultraviolet rays. C) Microwaves, infrared rays, ultraviolet rays, gamma rays. D) Infrared rays, microwaves, ultraviolet rays, gamma rays. Show Answer Correct Answer: C) Microwaves, infrared rays, ultraviolet rays, gamma rays. 28. Waves that can travel through space where there is no matter are called: A) Tidal waves. B) Electromagnetic waves. C) Sound waves. D) None of the above. Show Answer Correct Answer: B) Electromagnetic waves. 29. Because electromagnetic waves travel as both a particle and a wave, this is the "particle" component of an electromagnetic wave. (Vocab) A) Proton. B) Muon. C) Photon. D) Higgs Boson. E) Transceiver. Show Answer Correct Answer: C) Photon. 30. Which color of light has the longest wavelength? A) Red. B) Blue. C) Green. D) Orange. Show Answer Correct Answer: A) Red. 31. Electromagnetic wave with a wavelength between about 400 billionths and 10 billions of a meter A) Infrared wave. B) Visible light. C) X-ray. D) Ultraviolet wave. Show Answer Correct Answer: D) Ultraviolet wave. 32. What best describes the type of waves emitted by the Sun's rays? A) The Sun's rays are mechanical waves because they carry the greatest amount of energy. B) The Sun's rays are sound waves because they can travel through the vacuum of space. C) The Sun's rays are electromagnetic waves because they can travel through the vacuum of space. D) The Sun's rays are transverse waves because they cause the particles of space to compress together and transfer motion. Show Answer Correct Answer: C) The Sun's rays are electromagnetic waves because they can travel through the vacuum of space. 33. A source of electromagnetic radiation produces infrared light. which of the following could be the wavelength of this light A) 16.5A. B) 66.8m. C) 34.5um. D) 3.0nm. E) 4.7cm. Show Answer Correct Answer: D) 3.0nm. 34. Electromagnetic waves do not require a ..... to travel through. A) Vacuum. B) Solid. C) Medium. D) Gas. Show Answer Correct Answer: C) Medium. 35. Among seven types of electromagnet, which one has greatest wavelength. A) Ultraviolet ray. B) Radiowave. C) Microwave. D) X-ray. Show Answer Correct Answer: B) Radiowave. 36. Sound travels in which kind of wave? A) Longitudinal waves. B) Transverse waves. C) All the above. D) None of the above. Show Answer Correct Answer: A) Longitudinal waves. 37. The number of waves passing a point in a certain amount of time is the ..... A) Frequency. B) Wavelength. C) Amplitude. D) Compression. Show Answer Correct Answer: A) Frequency. 38. Which of the following is correctly arranged from lowest to highest energy? A) Ultraviolet, radio wave, infrared. B) Visible light, ultraviolet, gamma ray. C) X-ray, gamma ray, ultraviolet. D) Microwave, visible light, radio wave. Show Answer Correct Answer: B) Visible light, ultraviolet, gamma ray. 39. ..... are used to destroy cancer cells through radiation treatment. A) Antibiotics. B) Chemotherapy. C) Radiation therapy. D) Immunotherapy. Show Answer Correct Answer: C) Radiation therapy. 40. Light from the Sun transfers solar energy to the Earth system. Sunlight travels to Earth as ..... waves. A) Sound. B) Seismic. C) Electromagnetic. D) Water. Show Answer Correct Answer: C) Electromagnetic. 41. What can electromagnetic waves travel through that mechanical waves can not travel through? A) Brick. B) Wood. C) Vacuum. D) All of the above. Show Answer Correct Answer: C) Vacuum. 42. What is the primary difference between X-rays and visible light? A) Amplitude. B) Speed. C) Wavelength. D) Polarization. Show Answer Correct Answer: C) Wavelength. 43. All EM waves travel at A) The speed of a vacuum. B) The speed of sound. C) Different speeds. D) The speed of light. Show Answer Correct Answer: D) The speed of light. 44. Gamma rays have the shortest wavelength, and therefore the ..... frequency. A) Lowest. B) Highest. C) All the above. D) None of the above. Show Answer Correct Answer: B) Highest. 45. When the amplitude of a sound wave increases what is happening to the sound? A) It is getting louder. B) It is getting softer. C) It is getting farther away. D) None of the above. Show Answer Correct Answer: A) It is getting louder. 46. Ultraviolet light A) Is always bad for us. B) Is used by our skin to produce vitamin D. C) Is used by solar panels. D) Is used in nuclear power plants. Show Answer Correct Answer: B) Is used by our skin to produce vitamin D. 47. When an electric charge vibrates, the electric field around it changes creating a changing ..... A) Magnetic field. B) Sound field. C) Radio active field. D) Electron field. Show Answer Correct Answer: A) Magnetic field. 48. When water droplets in the atmosphere act like prisms, the colors in sunlight undergo A) Refraction. B) Diffraction. C) Interference. D) Dispersion. Show Answer Correct Answer: D) Dispersion. 49. Cellular tellophones utilize A) X rays. B) Microwaves. C) Cancer causing rays. D) Radio waves. Show Answer Correct Answer: B) Microwaves. 50. Visible light is located between ..... A) Infrared and ultraviolet. B) X-ray and gamma. C) Microwave and infrared. D) Ultraviolet and x-ray. Show Answer Correct Answer: A) Infrared and ultraviolet. 51. Which is true about x-rays? A) They have a short wavelength and a high frequency. B) X-rays with shorter wavelengths can penetrate through metals. C) X-rays with longer wavelengths can penetrate through flesh but not bones. D) All of the above. Show Answer Correct Answer: D) All of the above. 52. Light waves bouncing off a surface is known as? A) Absorption. B) Transmission. C) Reflection. D) Refraction. Show Answer Correct Answer: C) Reflection. 53. High frequency waves are associated with A) Cellular damage. B) Increased energy. C) Surgical procedures. D) All of these. Show Answer Correct Answer: D) All of these. 54. Which of the following correctly list the electromagnetic waves in order from the longest to the shortest wavelength? A) Radio wave, IR, Gamma ray, UV. B) Microwave, UV, Visible light, gamma ray. C) Gamma Ray, UV, IR, microwave. D) Radio wave, IR, Visible light, X-ray. Show Answer Correct Answer: D) Radio wave, IR, Visible light, X-ray. 55. The distance between 2 crests or troughs A) Wavelength. B) Frequency. C) Amplitude. D) Wave speed. Show Answer Correct Answer: A) Wavelength. 56. Material some waves travel through, such as the type of solid, liquid, or gas. A) Medium. B) Wavelength. C) Trough. D) Peak. Show Answer Correct Answer: A) Medium. 57. How does the speed of electromagnetic waves vary in different media? A) Electromagnetic waves travel faster in water than in air. B) The speed of electromagnetic waves is constant in all media. C) The speed of electromagnetic waves increases in denser media. D) The speed of electromagnetic waves decreases in denser media compared to a vacuum. Show Answer Correct Answer: D) The speed of electromagnetic waves decreases in denser media compared to a vacuum. 58. Which waves are often used for communication? A) Radio waves. B) Infrared ray. C) Ultraviolet rays. D) Gamma rays. Show Answer Correct Answer: A) Radio waves. 59. Water waves and light waves are both examples to ..... A) Frequency wave. B) Sound Wave. C) Longitudinal Wave. D) Transverse Wave. Show Answer Correct Answer: D) Transverse Wave. 60. Light waves carry energy over a distance. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. ← 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