This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves – Quiz 40 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 40 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which type of visible light has a longer wavelength, red or blue light. A) Blue light. B) Red light. C) All the above. D) None of the above. Show Answer Correct Answer: B) Red light. 2. What type of electromagnetic wave has a higher frequency than visible light and a larger wavelength than x-rays A) Infrared. B) Gamma. C) Visible. D) Ultraviolet. Show Answer Correct Answer: D) Ultraviolet. 3. Energy carried by an electromagnetic wave is called ..... A) Potential energy. B) Kinetic energy. C) Radiant energy. D) Gamma energy. Show Answer Correct Answer: C) Radiant energy. 4. Waves that require a medium to travel are: A) Mechanical waves. B) Transverse waves. C) Electromagnetic waves. D) Light waves. Show Answer Correct Answer: A) Mechanical waves. 5. Human eye can only detect only a small portion of this spectrum called A) Visible light. B) Gamma rays. C) Infrared rays. D) Radio waves. Show Answer Correct Answer: A) Visible light. 6. Which of the following situations would cause light to refract? A) Traveling through a vacuum. B) Moving from air to water. C) Moving through the air. D) Passing from one glass block to another. Show Answer Correct Answer: B) Moving from air to water. 7. Which SI (metric) unit is used for frequency? A) Hertz (Hz). B) Volt (v). C) Newton (N). D) Joule (J). Show Answer Correct Answer: A) Hertz (Hz). 8. Which electromagnetic waves are used in devices such as heat lamps? A) Ultraviolet rays. B) Microwaves. C) Infrared rays. D) None of the above. Show Answer Correct Answer: C) Infrared rays. 9. A radio wave is an example of what type of wave? A) Electromagnetic wave. B) Mechanical wave. C) All the above. D) None of the above. Show Answer Correct Answer: A) Electromagnetic wave. 10. These electromagnetic waves have the lowest frequencies A) Infrared Waves. B) Radio Waves. C) Gamma Waves. D) Ultraviolet Waves. Show Answer Correct Answer: B) Radio Waves. 11. Which EM wave has the highest energy? A) Radio waves. B) X-rays. C) Gamma waves. D) Ultraviolet waves. Show Answer Correct Answer: C) Gamma waves. 12. The waves produced by heat lamps are ..... A) Microwaves. B) Mechanical. C) Infrared. D) X-rays. Show Answer Correct Answer: C) Infrared. 13. Ultraviolet or UV radiation are ..... rays A) Invisible. B) Visible. C) Colourful. D) None of the above. Show Answer Correct Answer: A) Invisible. 14. What type of electromagnetic waves have the most energy? A) X-Rays. B) Gamma rays. C) Infrared rays. D) Ultraviolet. Show Answer Correct Answer: B) Gamma rays. 15. In general, which condition of motion MUST be met with regards to a charged particle if it is in the process of emitting electromagnetic waves? A) Accelerates. B) Moves in a circle. C) Moves at constant velocity. D) Moves at the speed of light. Show Answer Correct Answer: A) Accelerates. 16. Determine the frequency of electromagnetic radiation which would have a wavelength of 1.0 mile (1.6 km).What part of the electromagnetic spectrum does this fall within? (You will need to look at an EM Spectrum to determine). A) Radio waves. B) Infrared waves. C) Visible light. D) Ultraviolet waves. Show Answer Correct Answer: A) Radio waves. 17. To reflect means A) Light bends. B) To bounce off of something. C) To think about something. D) None of the above. Show Answer Correct Answer: B) To bounce off of something. 18. What type of lens is thicker at the edges and thinner in the center? A) Bifocal lens. B) Concave lens. C) Convex lens. D) Cylindrical lens. Show Answer Correct Answer: B) Concave lens. 19. All forms of radiation are harmful. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 20. When an electron is knocked out of a metal due to a high frequency photons being shined on the metal is called ..... A) Photographical Evidence. B) Photoelectric Effect. C) Photon Erosion. D) None of the above. Show Answer Correct Answer: B) Photoelectric Effect. 21. Frequency = 9.25x10$^{25}$ HzEnergy =? A) 7.16E-60. B) 1.40E+59. C) 2.77E+34. D) 6.13E-08. Show Answer Correct Answer: D) 6.13E-08. 22. Which of the following waves are used in nigh vision cameras ..... A) Micro waves. B) Radio waves. C) X-rays. D) Infrared light. Show Answer Correct Answer: D) Infrared light. 23. The higher the frequency the ..... the energy. A) Lower. B) Higher. C) Neither, stays the same. D) None of the above. Show Answer Correct Answer: B) Higher. 24. The portion of the visible spectrum that appears brightest to the human eye isaround 560 nm in wavelength, which corresponds to yellow-green. What is thefrequency of 560 nm light? c = 3 x 10$^{8}$m/s $f=\frac{c}{\lambda}$ A) 5.4 x 10$^{14}$ Hz. B) 4.5 x 10$^{14}$ Hz. C) 1.8 x 10$^{14}$ Hz. D) 6.0 x 10$^{14}$ Hz. Show Answer Correct Answer: A) 5.4 x 10$^{14}$ Hz. 25. Which of the following is not a primary color of light? A) Blue. B) Red. C) Yellow. D) Green. Show Answer Correct Answer: C) Yellow. ← 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