This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves – Quiz 31 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 31 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which condition of motion must be met with regard to a charged particle if it is in the process of emitting electromagnetic radiation? A) Moves parallel to a uniform magnetic field. B) Moves at the speed of light. C) Moves at constant velocity. D) Moves at increasing velocity. Show Answer Correct Answer: D) Moves at increasing velocity. 2. Which of the following is an example of electromagnetic wave interaction? A) Reflection of light from a mirror. B) Sound traveling through air. C) Water waves hitting a shore. D) Earthquake waves traveling through the ground. Show Answer Correct Answer: A) Reflection of light from a mirror. 3. What does radar stand for? A) Radio detection and ranging. B) Radial disemmination and ranging. C) Recorded detection and ranging. D) None of the above. Show Answer Correct Answer: A) Radio detection and ranging. 4. Light waves aren't the only type of electromagnetic waves. In fact, there are many different types, which you are probably already familiar with, including: ..... , ..... , ..... A) Light waves. B) Radio waves, microwaves, infrared waves. C) Sound waves, water waves, seismic waves. D) Gamma rays, X-rays, ultraviolet rays. Show Answer Correct Answer: B) Radio waves, microwaves, infrared waves. 5. Review questions:What are the 2 parts that make up an electromagnetic wave? A) Waves that are filled with electricity. B) Electric field and magnets. C) Electricity and magnesium. D) Electric field and a magnetic feild. Show Answer Correct Answer: D) Electric field and a magnetic feild. 6. Which statement about electromagnetic waves is NOT true? A) Electromagnetic waves travel at the same speed. B) Electromagnetic waves carry energy. C) Electromagnetic waves can travel through space. D) Electromagnetic waves need a medium to travel through. Show Answer Correct Answer: D) Electromagnetic waves need a medium to travel through. 7. One type of interaction of electromagnetic waves is reflection, we say a wave reflects when it ..... A) Bend when entering a medium. B) Bounce back from a surface. C) Spread out around obstacles. D) None of the above. Show Answer Correct Answer: B) Bounce back from a surface. 8. Which type of electromagnetic wave is used in night vision goggles? A) Radio waves. B) Microwaves. C) Infrared waves. D) Ultraviolet waves. Show Answer Correct Answer: C) Infrared waves. 9. Which of the following describes electromagnetic waves? A) Electromagnetic waves can have high frequencies with long wavelengths. B) Electromagnetic waves can have low frequencies with short wavelengths. C) Electromagnetic waves can travel at different speeds. D) Electromagnetic waves travel at the same speed. Show Answer Correct Answer: D) Electromagnetic waves travel at the same speed. 10. Gamma rays have higher frequency than Ultraviolet rays. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 11. This wave has a wavelngth. A) Electromagentic. B) Mechanical. C) Both. D) None of the above. Show Answer Correct Answer: C) Both. 12. Which has a higher frequency? A) Visible light. B) Ultraviolet rays. C) All the above. D) None of the above. Show Answer Correct Answer: B) Ultraviolet rays. 13. The Photoelectric Effect proved that light is a A) Wave because the light interfered with itself creating a dot pattern. B) Wave because brighter light transfers more energy. C) Particle because the energy of the individual photons determines the energy transferred. D) Particle because two distinct bands were created. Show Answer Correct Answer: C) Particle because the energy of the individual photons determines the energy transferred. 14. Electromagnetic waves are considered longitudinal waves A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 15. Mr. H catches the news on 780 AM, which broadcasts at 780. kHz. Determine the wavelength of these radio waves. A) 3.85 x 10$^{5}$ m. B) 385 m. C) 3.85 x 10$^{4}$ m. D) 3.85 x 10$^{6}$ m. Show Answer Correct Answer: B) 385 m. 16. They are used to treat cancer through the process called radiotherapy. A) Radio waves. B) Gamma Rays. C) Visible light. D) X-rays. Show Answer Correct Answer: B) Gamma Rays. 17. A sound wave needs particles to travel through? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 18. Elijah, Abigail, and Mason are on a space adventure! They come across an alien who asks them a question to pass. The alien asks, 'Which type of electromagnetic wave has the shortest wavelengths and highest frequencies?' A) Ultraviolet rays. B) Infrared rays. C) X-rays. D) Gamma rays. Show Answer Correct Answer: D) Gamma rays. 19. Electromagnetic waves are made up of an electric field and a magnetic field that oscillate (?) to one another A) Parallelly. B) Perpendicularly. C) All the above. D) None of the above. Show Answer Correct Answer: B) Perpendicularly. 20. What is the primary function of the commutator in a simple electric motor? A) It provides an electric and magnetic field. B) It carefully holds the motor casing together. C) It reverses the direction of current flow in the coil. D) It converts mechanical energy into electrical energy. Show Answer Correct Answer: C) It reverses the direction of current flow in the coil. 21. A sound wave can best be described as a: A) Transverse wave caused by a compression of particles. B) Transverse wave that passes through a vacuum. C) Longitudinal wave caused by the motion of water. D) Longitudinal wave caused by the vibration of a medium. Show Answer Correct Answer: D) Longitudinal wave caused by the vibration of a medium. 22. Light acts like A) A wave. B) A particle. C) Both a wave and a particle. D) Neither a wave nor a particle. Show Answer Correct Answer: C) Both a wave and a particle. 23. Sound waves can travel through a vacuum because they don't require particles. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. This has lower energy than that of red from visible light. A) Ultraviolet. B) Infrared. C) Visible light. D) None of the above. Show Answer Correct Answer: B) Infrared. 25. Which type of electromagnetic wave is primarily used in remote controls for televisions? A) Radio waves. B) Microwaves. C) Infrared waves. D) Ultraviolet waves. Show Answer Correct Answer: C) Infrared waves. ← 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