This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves – Quiz 37 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part I) Chapter 8 Electromagnetic Waves Quiz 37 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If a galaxy is round and lacks spiral arms, how would you categorize it? A) Spiral. B) Elliptical. C) Irregular. D) Barred spiral. Show Answer Correct Answer: B) Elliptical. 2. Specific frequency that a radio station is assigned and uses to broadcast signals A) Carrier wave. B) Analog signal. C) Digital signal. D) Transceiver. Show Answer Correct Answer: A) Carrier wave. 3. The emission of electrons from a metal caused by light striking the metal is called the ..... effect. A) Photoelectric. B) Thermoelectric. C) Piezoelectric. D) Electromagnetic. Show Answer Correct Answer: A) Photoelectric. 4. What is reflection in simple terms? A) Soaks up light. B) Light passes through. C) Light bounces off. D) None of the above. Show Answer Correct Answer: C) Light bounces off. 5. Each type of wave on the spectrum has ..... A) A different effect and same use. B) A different effect and use. C) The same effect and different use. D) The same effect and the same use. Show Answer Correct Answer: B) A different effect and use. 6. Which of these application is related to gamma ray. A) Photography. B) Baggage scanning at airport. C) Kills cancer cells in radiotheraphy. D) Photosynthesis. Show Answer Correct Answer: C) Kills cancer cells in radiotheraphy. 7. Emma, Samuel, and Elijah are playing a game where they try to identify different types of electromagnetic waves. Which type of electromagnetic wave can they see with their unaided eyes? A) Radio waves. B) Microwaves. C) Visible light. D) Infrared rays. Show Answer Correct Answer: C) Visible light. 8. Which two waves lie at the beginning and end of the electromagnetic spectrum? A) Gamma ray and X-ray. B) Microwave and ultraviolet rays. C) Radio wave and gamma ray. D) Radio waves and microwaves. Show Answer Correct Answer: C) Radio wave and gamma ray. 9. Things that look white ..... all the visible light shining on them. A) Refract. B) Reflect. C) All the above. D) None of the above. Show Answer Correct Answer: B) Reflect. 10. What is the speed of the electromagnetic wave in a vacuum? A) Zero. B) Always the same as the speed of light. C) Changing depending on the value of its wavelength. D) Changing, depending on the value of its frequency. Show Answer Correct Answer: B) Always the same as the speed of light. 11. The percentage of light we can see is A) 2%. B) 50 %. C) 4 %. D) 0.0035 %. Show Answer Correct Answer: D) 0.0035 %. 12. Among the types of EM Waves Radio waves have the highest frequency level. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 13. What does the visible light spectrum cover? A) The wavelengths that can be seen by the human eye. B) The wavelengths that cannot be seen by the human eye. C) The wavelengths used in radio communication. D) The wavelengths that are used in X-rays. Show Answer Correct Answer: A) The wavelengths that can be seen by the human eye. 14. What is the name of a sound wave of a certain frequency? A) Tone. B) Range. C) Volume. D) Decibel. Show Answer Correct Answer: A) Tone. 15. What is a longitudinal wave also known as? A) Transverse wave. B) Compressional wave. C) Surface wave. D) Standing wave. Show Answer Correct Answer: B) Compressional wave. 16. Which property determines the amount of energy for an ELECTROMAGNETIC wave? A) Amplitude. B) Frequency. C) Particle size. D) Medium. Show Answer Correct Answer: B) Frequency. 17. Which EM wave is responsible for food production of plants through photosynthesis? A) Infrared rays. B) Visible light. C) Ultraviolet rays. D) X-rays. Show Answer Correct Answer: B) Visible light. 18. Gamma rays move A) The slowest. B) The fastest. C) The same speed as radio waves. D) None of the above. Show Answer Correct Answer: C) The same speed as radio waves. 19. Which part of the electromagnetic spectrum is not characterized by causing cancer? A) Gamma rays. B) X-rays. C) Ultraviolet rays. D) Radio waves. Show Answer Correct Answer: D) Radio waves. 20. A method of broadcasting signals by changing frequency A) Frequency modulation. B) Amplitude modulation. C) Modulation. D) Trapezoid. Show Answer Correct Answer: A) Frequency modulation. 21. Can travel through matter (gas, liquid, solid) but not space. A) Light. B) Sound. C) All the above. D) None of the above. Show Answer Correct Answer: B) Sound. 22. Electromagnetic waves produce fields of energy. What are these 2 fields of energy? A) Elephant and Mouse. B) Electrical and Mechanical. C) Radiation and Light. D) Electrical and Magnetic. Show Answer Correct Answer: D) Electrical and Magnetic. 23. Which electromagnetic wave carries the most energy? A) Gamma waves. B) Microwaves. C) Radio waves. D) Light waves. Show Answer Correct Answer: A) Gamma waves. 24. In the electromagnetic spectrum, which has the longest wavelength? A) Gamma ray. B) Radio wave. C) Ultraviolet. D) Visible light. Show Answer Correct Answer: B) Radio wave. 25. All ..... waves need a medium to carry energy. A) Mechanical waves. B) Electromagnetic waves. C) Longitudinal waves. D) Transverse. Show Answer Correct Answer: A) Mechanical 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