This quiz works best with JavaScript enabled. Home > Class 12 > 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 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following oscillating quantities made up an electromagnetic wave? A) Electric and magnetic fields. B) Magnetic fields only. C) Electric fields only. D) Electrons only. Show Answer Correct Answer: A) Electric and magnetic fields. 2. Gamma rays can be used A) To treat cancer. B) In tanning beds. C) In tv remote controls. D) In solar panels. Show Answer Correct Answer: A) To treat cancer. 3. Which of the following is a spiral galaxy? A) Milky Way. B) Large Magellanic Cloud. C) Messier 87. D) Small Magellanic Cloud. Show Answer Correct Answer: A) Milky Way. 4. Microwaves have longer wavelengths than radio waves A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 5. What is the speed of EM waves? A) 3 km/s. B) 300, 000 km/h. C) 300 km/s. D) 300, 000 km/s. Show Answer Correct Answer: D) 300, 000 km/s. 6. It has the lowest frequency and it used to transmit sound and pictures in a radio or television. A) Radio wave. B) Gamma Rays. C) Visible light. D) X-rays. Show Answer Correct Answer: A) Radio wave. 7. Which type of waves must have a medium in order to travel? A) Electromagnetic wave. B) Mechanical wave. C) All the above. D) None of the above. Show Answer Correct Answer: B) Mechanical wave. 8. Which electromagnetic wave is most suitable for taking images of bones while minimizing exposure time risks? A) Visible light from rainbow colors. B) Ultraviolet used for vitamin D. C) X-rays that penetrate soft tissue. D) Gamma rays from nuclear reactions. Show Answer Correct Answer: C) X-rays that penetrate soft tissue. 9. True or False:Mechanical waves can travel in space. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 10. What determines the height of the oscillation? A) Timbre. B) Oscaillation frequency. C) Volume. D) Frequency. Show Answer Correct Answer: B) Oscaillation frequency. 11. I know and can label the following:amplitude, frequency, crest, trough, and equilibrium point on the chart in my review. A) Yes. B) Not yet. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 12. Which electromagnetic waves are commonly used in remote controls for televisions? A) Infrared rays. B) Radio waves. C) X-rays. D) Ultraviolet rays. Show Answer Correct Answer: A) Infrared rays. 13. True or False:Red has the HIGHEST Frequency A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 14. If an object appears green it must ..... A) Reflect green light. B) Transmit blue light. C) Absorb green light. D) Reflect yellow and orange light. Show Answer Correct Answer: A) Reflect green light. 15. What type of waves are electromagnetic waves? A) Transverse. B) Optical. C) Magnetical. D) Longitudinal. Show Answer Correct Answer: A) Transverse. 16. What type of EM wave is used in checking the authenticity of bank notes? A) Microwave. B) Infrared. C) Ultraviolet. D) X-ray. Show Answer Correct Answer: C) Ultraviolet. 17. As frequency increases, wavelength becomes ..... A) Smaller. B) Higher. C) Wider. D) Longer. Show Answer Correct Answer: A) Smaller. 18. Which of the following are in correct order from longest to shortest wavelength? A) Microwaves, infrared, ultraviolet, x-rays. B) Microwaves, x-rays, infrared, ultraviolet. C) X-rays, ultraviolet, infrared, microwaves. D) Infrared, ultraviolet, x-rays, microwaves. Show Answer Correct Answer: A) Microwaves, infrared, ultraviolet, x-rays. 19. Only some light waves pass through a polarizing filter. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 20. Which of the following has the highest frequency? A) Gamma rays. B) Microwaves. C) Radiowaves. D) Ultraviolet rays. Show Answer Correct Answer: A) Gamma rays. 21. Wavelength = 3.00x10$^{-8}$ mFrequency = ..... What is the *Energy* =? A) 9.99x10$^{15}$. B) 1.00x10$^{-16}$. C) 6.62x10$^{-18}$. D) 1.51x10$^{49}$. Show Answer Correct Answer: C) 6.62x10$^{-18}$. 22. GPS stands for ..... system. A) Global placement. B) Global positioning. C) Gamma positioning. D) None of the above. Show Answer Correct Answer: B) Global positioning. 23. Which of the following electromagnetic waves has the shortest wavelength? A) Radio waves. B) Microwaves. C) X-rays. D) Infrared waves. Show Answer Correct Answer: C) X-rays. 24. Radio waves carry information from a broadcasting station to your radio or television. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. Electromagnetic waves can travel through a vacuum. What is the speed of an electromagnetic wave in a vacuum? A) 3 x 108 m/s. B) 3 x 108 m/s$^{2}$. C) 3 x 109 m/s. D) 3 x 109 m/s$^{2}$. Show Answer Correct Answer: A) 3 x 108 m/s. ← 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 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books