This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves – Quiz 26 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 26 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The number of waves that pass in a certain amount of time is called A) Frequency. B) Wavelength. C) Crest. D) Amplitude. Show Answer Correct Answer: A) Frequency. 2. Longest wavelength of light A) Radio. B) Red. C) Infrared. D) Gamma. Show Answer Correct Answer: A) Radio. 3. What is the wavelength of a microwave transmission at 1, 575.42 MHz? A) $1.9\times10^{-14}$. B) $1.9\times10^{-9}$. C) $0.19$. D) $1900$. Show Answer Correct Answer: C) $0.19$. 4. The color an object appears depends on what two things A) Pigments in it and the light it is in. B) The transparency of the object. C) Does it produce dispersion. D) Does it diffuse reflect light. Show Answer Correct Answer: A) Pigments in it and the light it is in. 5. Electromagnetic waves come in various forms.*Visible light*Infrared*Radio*X-rays A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 6. What is an example of a wave with a long wavelength and low frequency? A) Gamma rays. B) Infrared. C) Radio. D) Visible light. Show Answer Correct Answer: C) Radio. 7. Microwaves carry high energy that can pass through the skin and tissues to generate structures inside the body. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 8. Device that transmits radio signals at one frequency and receives radio signals at a different frequency, allowing a user to talk and listen at the same time A) Transceiver. B) Modulation. C) Photon. D) Digital signal. Show Answer Correct Answer: A) Transceiver. 9. Which waves are the type that can give us suntans and sunburns? A) Infrared radiation. B) Ultraviolet radiation. C) Radio waves. D) X-rays. Show Answer Correct Answer: B) Ultraviolet radiation. 10. Visible light can be separated into various colors to form a (an) ..... A) Spectrum. B) Thermogram. C) MRI. D) X-Ray Picture. Show Answer Correct Answer: A) Spectrum. 11. All electromagnetic waves travel at the same speed. What speed do they travel at? A) 162 mph. B) The speed of light. C) 75 mph. D) Light speed. Show Answer Correct Answer: B) The speed of light. 12. Acoustic waves are also called ..... A) Mechanical waves. B) Seismic waves. C) All the above. D) None of the above. Show Answer Correct Answer: A) Mechanical waves. 13. Which of the following is NOT a tool used to observe the electromagnetic spectrum? A) Spectrometer. B) Radio telescope. C) X-ray telescope. D) Electron microscope. Show Answer Correct Answer: D) Electron microscope. 14. Used to treat cancer A) Microwaves. B) X rays. C) Radio Waves. D) Gamma rays. E) None of the above. Show Answer Correct Answer: D) Gamma rays. 15. The distance between one wave crest to the next is the definition of which word? A) Infrared. B) Wavelength. C) Spectrum. D) Equilibrium. Show Answer Correct Answer: B) Wavelength. 16. When an earthquake occurs, what is the resulting direction of the surface waves it generates? A) Parallel. B) Circular. C) Opposite. D) Perpendicular. Show Answer Correct Answer: B) Circular. 17. In a wave machine, a wave would pass fastest 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: A) Bare skewers. 18. Factors that affect a wave's speed are ..... A) Wavelength & Energy. B) Frequency & Amplitude. C) Wavelength & Frequency. D) Amplitude & Tension. Show Answer Correct Answer: C) Wavelength & Frequency. 19. If a wave has a long wavelength, it will have ..... energy. A) High. B) Medium. C) Low. D) None of the above. Show Answer Correct Answer: C) Low. 20. Sound travels fastest through what type of medium? A) Pond water. B) Cold air. C) Iced tea. D) Wooden desk. Show Answer Correct Answer: D) Wooden desk. 21. Two light waves have the same wavelength. The wave with the greater amplitude carries ..... energy. A) Less. B) More. C) Same amount. D) None of the above. Show Answer Correct Answer: B) More. 22. Which statement below correctly describes the speed of light? A) The speed of light is slower than the speed of sound. B) The speed of light is relatively slow compared to how objects travel in the universe. C) The speed of light is fast, but not faster than a fighter jet. D) Nothing in the universe can travel faster than the speed of light. Show Answer Correct Answer: D) Nothing in the universe can travel faster than the speed of light. 23. Why is the word 'AMBULANCE' laterally reversed on the vehicle? A) To help drivers recognize the vehicle faster and move out of its way. B) To make the word appear correctly when reflected in rear-view mirrors. C) To improve visibility and help drivers respond promptly to emergencies. D) To ensure that drivers ahead can quickly identify it using their rearview mirrors. Show Answer Correct Answer: B) To make the word appear correctly when reflected in rear-view mirrors. 24. All matter emits A) Electromagnetic energy. B) Magnetic energy. C) Sound. D) All of these. Show Answer Correct Answer: A) Electromagnetic energy. 25. Shortest wavelength of light A) Violet. B) Ultraviolet. C) Radio. D) Gamma. Show Answer Correct Answer: D) Gamma. ← 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