This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 5 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Visible light has how many different frequencies and wavelengths? A) 5. B) 6. C) 7. D) 8. Show Answer Correct Answer: B) 6. 2. Which of the following are in the correct order from shortest to longest wavelength? A) Radio, Visible, Gamma. B) Visible, Radio, Gamma. C) Gamma, Radio, Visible. D) Gamma, Visible, Radio. Show Answer Correct Answer: D) Gamma, Visible, Radio. 3. Which of these lists the EM waves from Highest to lowest frequency? A) Radio-Micro-Gamma-Visible light-UV-Xrays-Infrared-Xrays. B) Radio-Micro-Infrared-Visible light-UV-X-Gamma waves. C) Gamma-Xray-UV-Visible light-Infrared-Micro-radio. D) None of the above. Show Answer Correct Answer: C) Gamma-Xray-UV-Visible light-Infrared-Micro-radio. 4. Compared to radio waves, how are microwaves in terms of wavelength? A) Longer. B) The same length. C) Shorter. D) Variable. Show Answer Correct Answer: C) Shorter. 5. EM waves travel at the speed of light. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 6. Select the correct order on the Electromagnetic Spectrum from shortest wavelengths to longest wavelengths A) R, M, I, V, U, X, G. B) G, X, U, V, I, M, R. C) V, M, I, U, X, G, R. D) None of the above. Show Answer Correct Answer: B) G, X, U, V, I, M, R. 7. Waves transfer which of the following from one place to another? A) Energy, but not matter. B) Both matter & energy. C) Matter, but not energy. D) Light, but not sound. Show Answer Correct Answer: A) Energy, but not matter. 8. What do all waves have in common? A) They transfer energy from one place to another. B) They transfer matter from one place to another. C) They all travel at the same speed. D) They all travel in a medium or substance. Show Answer Correct Answer: A) They transfer energy from one place to another. 9. If the frequency of an electromagnetic wave is increased, what happens to its wavelength? A) The wavelength increases. B) The wavelength decreases. C) The wavelength remains the same. D) The wavelength becomes infinite. Show Answer Correct Answer: B) The wavelength decreases. 10. Which of the following are in correct order from greatest to least energy? 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: C) X-rays, ultraviolet, infrared, microwaves. 11. The primary pigment colors are A) Red, Green, Blue. B) Cyan, Yellow, Magenta. C) The same as complementary colors. D) Red, Blue, Yellow. Show Answer Correct Answer: B) Cyan, Yellow, Magenta. 12. Which electromagnetic waves are used in ovens? A) Infrared rays. B) Ultraviolet rays. C) Microwaves. D) None of the above. Show Answer Correct Answer: C) Microwaves. 13. Maxwell hypothesized that a changing electric field would produce a magnetic field. and edited which equation: A) Gauss's Law. B) Faraday's Law. C) Ampere's Law. D) Magnetic flux through a closed loop formula. Show Answer Correct Answer: C) Ampere's Law. 14. Electromagnetic waves do not require any medium for propagation. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. What is the relationship between wavelength and frequency in waves? A) They are directly related; as wavelength increases, frequency increases. B) They are inversely related; as wavelength increases, frequency decreases. C) They are unrelated; changes in wavelength do not affect frequency. D) They are proportionally related; as wavelength increases, frequency remains constant. Show Answer Correct Answer: B) They are inversely related; as wavelength increases, frequency decreases. 16. How does wavelength change as frequency increases across the EM spectrum? A) The wavelength increases. B) The wavelength first increases and then decrease. C) The wavelength first decreases and then increases. D) The wavelength decreases. Show Answer Correct Answer: D) The wavelength decreases. 17. Frequency = number of wavelengths that pass a given point in 1 km. A) False. B) True. C) Both. D) None of the above. Show Answer Correct Answer: A) False. 18. Electromagnetic waves with the longest wavelengths are A) Gamma rays. B) X-rays. C) Infrared waves. D) Radio waves. Show Answer Correct Answer: D) Radio waves. 19. How are electromagnetic waves produced? A) Any disturbance. B) Currents. C) Vibrating Charge. D) Voltage source. Show Answer Correct Answer: C) Vibrating Charge. 20. The visible light spectrum ranges between A) Radar waves and X-rays. B) Television waves and infrared rays. C) Infrared rays and ultraviolet rays. D) Ultraviolet rays and gamma rays. Show Answer Correct Answer: C) Infrared rays and ultraviolet rays. 21. A ..... is the lighter, outer part of a shadow cone. A) Penumbra. B) Umbra. C) All the above. D) None of the above. Show Answer Correct Answer: A) Penumbra. 22. Which among the following has the maximum penetrating power? A) Radio waves. B) Microwaves. C) Ultraviolet radiation. D) Gamma rays. Show Answer Correct Answer: D) Gamma rays. 23. Based on Maxwell starting points:*Magnetic field lines: A) Always form closed loops-they do not begin or end anywhere. B) They can form closed or open loops-they begin at specific point but end anywhere. C) Originate on south poles and terminate on north poles. D) Magnetis can be found as separate poles. Show Answer Correct Answer: A) Always form closed loops-they do not begin or end anywhere. 24. What is the third highest electromagnetic wave on the electromagnetic spectrum? A) Gamma Ray. B) X-Ray. C) Ultraviolet. D) Visible Light. Show Answer Correct Answer: C) Ultraviolet. 25. Electromagnetic waves with wavelengths of 700 to 400 billionths of a meter that can be detected by human eyes A) Visible light. B) Infrared waves. C) Ultraviolet waves. D) Microwaves. Show Answer Correct Answer: A) Visible light. ← 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 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