This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 59 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 59 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Periodic motion A) In any periodic motion, the amount of time required for an object to repeat one complete cycle of motion. B) Any motion that repeats in a regular cycle. C) All the above. D) None of the above. Show Answer Correct Answer: B) Any motion that repeats in a regular cycle. 2. Infrasound A) Sound with frequencies lower than 20 Hz, which cannot be detected by the human ear. B) Sound with frequencies higher than 20 kHz, which can be detected by some animals. C) Sound that is audible to humans and typically ranges from 20 Hz to 20 kHz. D) Sound that is produced by human vocal cords and is typically above 100 Hz. Show Answer Correct Answer: A) Sound with frequencies lower than 20 Hz, which cannot be detected by the human ear. 3. True or False:Sound needs a medium. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 4. Which of the following waves requires a medium to travel through? A) Light wave. B) Radio wave. C) Sound wave. D) X-ray. Show Answer Correct Answer: C) Sound wave. 5. Which of the following would have the lowest pitch? A) Striking a tuning fork against a glass jar. B) Playing a flute. C) An angry dog's growl. D) A child's squeal. Show Answer Correct Answer: C) An angry dog's growl. 6. Wave that moves perpendicular to the direction of travel? A) Water. B) Longitudinal. C) Tranverse. D) Seismic. Show Answer Correct Answer: C) Tranverse. 7. True or False:When two waves meet, they will bounce off of one another after interfering. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 8. If sounds of differing frequencies are played in succession, in which of the following would a change be detected? (Assume amplitude constant) A) Loudness. B) Speed. C) Pitch. D) Wavelength. Show Answer Correct Answer: C) Pitch. 9. A microwave has a frequency of 300MHz. What is the wavelength of these waves? A) 1000 m. B) 100 m. C) 10 m. D) 1 m. Show Answer Correct Answer: D) 1 m. 10. Sound is an example of a transverse wave A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 11. In general, the speed of sound is slower in A) Gases. B) Liquids. C) Solids. D) Equal in all of them. Show Answer Correct Answer: A) Gases. 12. Sound can only travel through solids, liquids and gases. It can't travel through empty space. Which type of wave is sound? A) Electromagnetic. B) Mechanical. C) All the above. D) None of the above. Show Answer Correct Answer: B) Mechanical. 13. Which of the following describes the type of wave produced on a stretched guitar string after it has been plucked? A) Stationary, longitudinal, electromagnetic. B) Stationary, transverse, mechanical. C) Progressive, longitudinal, electromagnetic. D) Progressive, transverse, mechanical. Show Answer Correct Answer: B) Stationary, transverse, mechanical. 14. Sound waves strike a glass and cause it to shatter. This phenomenon illustrates A) Resonance. B) Refraction. C) Reflection. D) Diffraction. Show Answer Correct Answer: A) Resonance. 15. In a standing wave, what is the distance between two consecutive nodes? A) One wavelength. B) Half a wavelength. C) Quarter of a wavelength. D) Two wavelengths. Show Answer Correct Answer: B) Half a wavelength. 16. Water waves have a wavelength of $23cm$ $3.55Hz$ A) $0.817ms^{-1}$. B) $81.7ms^{-1}$. C) $0.0648ms^{-1}$. D) $0.154ms^{-1}$. Show Answer Correct Answer: A) $0.817ms^{-1}$. 17. In a progressive wave, what is the distance between two consecutive points in phase called? A) Amplitude. B) Wavelength. C) Frequency. D) Period. Show Answer Correct Answer: B) Wavelength. 18. The speed of light in a material is 1.7 x 108ms-1. What is the refractive index of the material? A) 0.57. B) 1.43. C) 1.76. D) 2.31. Show Answer Correct Answer: C) 1.76. 19. What do we call the lowest point of a transverse wave? A) Crest. B) Trough. C) Wavelength. D) Amplitude. Show Answer Correct Answer: B) Trough. 20. List the different types of light sources. A) Solar panels. B) Batteries. C) Mirrors. D) Natural light sources, Incandescent bulbs, Fluorescent lamps, LEDs, Lasers. Show Answer Correct Answer: D) Natural light sources, Incandescent bulbs, Fluorescent lamps, LEDs, Lasers. 21. Sound waves A) Sound waves are created by the vibrations of objects. B) Sound waves are a type of electromagnetic wave. C) Sound waves can travel through a vacuum. D) Sound waves are only produced by musical instruments. Show Answer Correct Answer: A) Sound waves are created by the vibrations of objects. 22. What happens when white light passes through a prism? A) It splits into a spectrum of colors. B) It becomes brighter. C) It loses its intensity. D) It becomes invisible. Show Answer Correct Answer: A) It splits into a spectrum of colors. 23. Constructive interference happens when two waves A) Change their speed and bend. B) Meet and make a wave with a smaller amplitude. C) Meet and make a wave with a bigger amplitude. D) Go around a barrier. Show Answer Correct Answer: C) Meet and make a wave with a bigger amplitude. 24. Which type of radio wave can diffract (bend) around curved surfaces such as hills? A) Long-wave. B) Short-wave. C) All the above. D) None of the above. Show Answer Correct Answer: A) Long-wave. 25. What is a characteristic of transverse waves? A) The particles of the medium vibrate parallel to the direction of wave motion. B) They do not require a medium to travel. C) They cause perpendicular motion of the medium through which it travels. D) They are only found in electromagnetic waves. Show Answer Correct Answer: C) They cause perpendicular motion of the medium through which it travels. ← PreviousNext →Related QuizzesClass 11 Physics (Part Ii) Chapter 17 Waves Quiz 1Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 2Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 3Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 4Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 5Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 6Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 7Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 8Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 9Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books