This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The lowest part of the wave is? A) Crest. B) Trough. C) Rarefaction. D) Wavelength. Show Answer Correct Answer: B) Trough. 2. Massless energy-containing particle that electromagnetic wave sometimes behave like; the frequency of the electromagnetic wave increases with the energy of the particle A) Photon. B) Gamma ray. C) Transceiver. D) Carrier wave. Show Answer Correct Answer: A) Photon. 3. An electric signal with only two possible values:ON and OFF A) Digital signal. B) Analog signal. C) Carrier wave. D) Modulation. Show Answer Correct Answer: A) Digital signal. 4. ..... waves can help sterilize medical equipment by killing bacteria. A) Infrared. B) Visible. C) Gamma. D) Ultraviolet. Show Answer Correct Answer: D) Ultraviolet. 5. In a wave machine, a wave would pass slowest 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: C) Skewers with orange slices. 6. Within a vacuum, the property common to all electromagnetic waves is their ..... A) Amplitude. B) Frequency. C) Wavelength. D) Wave speed. Show Answer Correct Answer: D) Wave speed. 7. How would a wave in a wave machine change going from skewers with spice drops to skewers with orange slices? A) Not change. B) Speed up. C) Slow down. D) It's a guessing game really. Show Answer Correct Answer: C) Slow down. 8. Transverse waves created by electrical and magnetic waves moving in right angles to each other are called ..... A) Surface Waves. B) Longitudinal Waves. C) Electromagnetic Waves. D) Mechanical Waves. Show Answer Correct Answer: C) Electromagnetic Waves. 9. Light does not need matter to travel. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. Electromagnetic waves exhibit properties of waves and particles. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 11. What is the term for the lowest point of a transverse wave? A) Crest. B) Trough. C) Amplitude. D) Wavelength. Show Answer Correct Answer: B) Trough. 12. As the wavelength decreases, the frequency increases. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 13. Process of adding a signal to a carrier wave by altering the carrier wave's amplitude, frequency, or other property A) Modulation. B) Analog signal. C) Digital signal. D) Transceiver. Show Answer Correct Answer: A) Modulation. 14. A ship anchored at sea is rocked by waves that have crests 14m apart. the waves travel at 7.0m/s. How often do the wave crests reach the ship?What is this problem asking you to solve for? A) Frequency. B) Wavelength. C) Wave speed. D) None of the above. Show Answer Correct Answer: A) Frequency. 15. What type of wave should be used to transfer electric and magnetic energy through the vacuum of space? A) Radio waves. B) Microwaves. C) Visible light. D) Electromagnetic waves. Show Answer Correct Answer: D) Electromagnetic waves. 16. True or false:as you move along the spectrum, left to right, the wavelengths decrease in size (get smaller) A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. When red light is compared with violet light A) Both travel at the same speed. B) Red light travels faster than violet light. C) Both have the same wavelength. D) Both have the same frequency. Show Answer Correct Answer: A) Both travel at the same speed. 18. The waves with the longest wavelengths in the electromagnetic spectrum A) Infrared rays. B) Gamma rays. C) Radio waves. D) X-rays. Show Answer Correct Answer: C) Radio waves. 19. What unit is used to measure frequency? A) Centimeters (cm). B) Meters (m). C) Hertz (Hz). D) Miles per hour. Show Answer Correct Answer: C) Hertz (Hz). 20. Which one does not belong? A) Earthquake. B) Light waves. C) Radio signal. D) Radiation waves. Show Answer Correct Answer: A) Earthquake. 21. High-frequency waves have a lot of energy and also have more potentially harmful. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 22. Which electromagnetic waves have the longest wavelengths and lowest frequencies? A) Infrared waves. B) Radio waves. C) Gamma rays. D) Ultraviolet rays. Show Answer Correct Answer: B) Radio waves. 23. Which property means can't see through? A) Waterproof. B) Heat-trapping. C) Opaque. D) Soft. Show Answer Correct Answer: C) Opaque. 24. Frequency tells you how fast the wave is moving A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 25. The optical tweezer utilizes ..... property of EM waves. A) Speed. B) Refraction. C) Momentum. D) None. Show Answer Correct Answer: C) Momentum. ← PreviousNext →Related QuizzesClass 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 1Class 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 10Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books