This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part Ii > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 16 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The relationship between wavelength and frequency is $\lambda$=c/f. Calculate the wavelength of light that has a frequency of 5.2 x 10$^{12 }$1/s. The speed of of light is 3.0x 10$^{8}$ m/s. A) 1.56 x 10 $^{23}$ m. B) 5.8 x 10 $^{-7}$ m. C) 5.8 x 10 $^{-5}$ m. D) 5.19 x 10 $^{14}$ m. Show Answer Correct Answer: C) 5.8 x 10 $^{-5}$ m. 2. Which of the following is correct for a stationary wave? A) Between two nodes the amplitude of the wave is constant. B) The two waves producing the stationary wave must always be 180$^\circ$ out of phase. C) The separation of the nodes for the second harmonic is double the separation of nodes for the first harmonic. D) Between two nodes all parts of the wave vibrate in phase. Show Answer Correct Answer: D) Between two nodes all parts of the wave vibrate in phase. 3. The time taken for one oscillation of 0.25 s. What is the frequency of this harmonic motion? A) 4 Hz. B) 8 s. C) 8 Hz. D) 4 s. Show Answer Correct Answer: A) 4 Hz. 4. If 10 waves pass one point every 16.0 seconds, what is the frequency of the wave? A) 1.6 Hz. B) 0.312 Hz. C) 0.625 Hz. D) 10 Hz. Show Answer Correct Answer: C) 0.625 Hz. 5. Law of Reflection states that the angle of: A) Incidence equals angle of reflection. B) Refraction equals wave speed. C) Amplitude controls reflection. D) Wavelength determines reflection. Show Answer Correct Answer: A) Incidence equals angle of reflection. 6. If you shine white light through a prism it will A) Be refracted. B) Be refracted but the different colours will be refracted different amounts. C) Be reflected. D) None of the above. Show Answer Correct Answer: B) Be refracted but the different colours will be refracted different amounts. 7. Which radiation increases risk of skin cancer? A) Ultraviolet. B) Infrared. C) Microwaves. D) Radio waves. Show Answer Correct Answer: A) Ultraviolet. 8. When a wave undergoes total internal reflection, which of the following statements is true? A) The wave is partially reflected and partially transmitted. B) The incident angle is greater than the critical angle. C) The refractive indices of the two media are equal. D) The wave is absorbed by the medium. Show Answer Correct Answer: B) The incident angle is greater than the critical angle. 9. Used in medical technology specifically in generating images of lungs and bone fractures A) Visible light. B) X-ray. C) Infrared. D) Ultraviolet. Show Answer Correct Answer: B) X-ray. 10. Light is this type of wave A) Transverse Wave. B) Longitudinal Wave. C) All the above. D) None of the above. Show Answer Correct Answer: A) Transverse Wave. 11. Hey Nora and Luna, imagine you're at the beach watching the waves. Can you tell Rohan which wave property describes the height of a wave from its rest position to its crest? A) Frequency. B) Wavelength. C) Amplitude. D) SpeedTagsDOK Level 1:Recall. Show Answer Correct Answer: C) Amplitude. 12. Which of the following is not an example of approximate simple harmonic motion? A) A ball bouncing on the floor. B) A child swinging on a swing. C) A piano wire that has been struck. D) A car's radio antenna waving back and forth. Show Answer Correct Answer: A) A ball bouncing on the floor. 13. W ave that has a frequency of 2 Hz has a period of ..... A) 2 seconds. B) 0.5 seconds. C) More info please. D) None of the above. Show Answer Correct Answer: B) 0.5 seconds. 14. What unit is used to describe frequency of waves? A) Hertz. B) Newtons. C) Decibel. D) Meters. Show Answer Correct Answer: A) Hertz. 15. What type of wave MUST have matter to travel through? A) X-Ray. B) Radient. C) Mechanical. D) Electromagnetic. Show Answer Correct Answer: C) Mechanical. 16. En una onda transversal, la onda viaja ..... al medio. A) Junto. B) Perpendicular. C) Inclinado. D) Paralelo. Show Answer Correct Answer: B) Perpendicular. 17. Which property of waves determines the pitch of a sound? A) Wavelength. B) Velocity. C) Frequency. D) Amplitude. Show Answer Correct Answer: C) Frequency. 18. The product of the frequency of a wave and its period is always equal to A) 1. B) $\pi$. C) 3 $\pi$. D) 2 $\pi$. Show Answer Correct Answer: A) 1. 19. A standing wave appears to be staying in one place. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. The crest of a wave is: A) The time of one wavelength. B) The highest point of the wave. C) The lowest point of the wave. D) The distance between two successive crests. Show Answer Correct Answer: B) The highest point of the wave. 21. It is the number of complete wave cycles that pass a point in one second. A) Loudness. B) Pitch. C) Frequency. D) Intensity. Show Answer Correct Answer: C) Frequency. 22. What type of frequency does sonar use? A) Any frequency. B) Medium frequency. C) Low frequency. D) High frequency. Show Answer Correct Answer: D) High frequency. 23. What does frequency measure in the context of waves? A) The height of the wave. B) The number of waves that pass a point in one second. C) The speed of the wave. D) The distance between waves. Show Answer Correct Answer: B) The number of waves that pass a point in one second. 24. In the equation f$_{n}$ = nf$_{1, }$n is A) The number of nodes. B) The frequency of the wave. C) The number of wavelengths. D) The harmonic number. Show Answer Correct Answer: D) The harmonic number. 25. What are the properties of the image of a plane mirror? A) Virtual, Enlarged. B) Virtual Same Size. C) Real, Enlarged. D) Real, Same Size. Show Answer Correct Answer: B) Virtual Same Size. 26. What are seismic waves? A) The waves created by the ocean. B) The waves that are released during an earthquake. C) The waves that travel through space. D) The waves that occur during a volcano. Show Answer Correct Answer: B) The waves that are released during an earthquake. 27. 1) A monochromatic laser shines at 422 nm. What is the frequency of the wave? A) 711000 Hz. B) 1.45 x 10$^{-4}$ Hz. C) 7.11 x 10$^{14}$ Hz. D) 0.813 Hz. Show Answer Correct Answer: C) 7.11 x 10$^{14}$ Hz. 28. A wave that can travel through matter and empty space is a: A) Electromagnetic wave. B) Longitudinal wavy. C) Transverse wave. D) None of the above. Show Answer Correct Answer: A) Electromagnetic wave. 29. Which of the following is the term for the time taken for one complete cycle of a wave? A) Amplitude. B) Period. C) Wavelength. D) Frequency. Show Answer Correct Answer: B) Period. 30. What is the change in frequency of a wave as its source moves in relation to an observer called? A) Wave Shift. B) Frequency Shift. C) Doppler Effect. D) Pitch Change. Show Answer Correct Answer: D) Pitch Change. 31. The amplitude is the ..... A) Measured in seconds. B) Distance from trough to trough. C) Distance from midpoint to crest or from midpoint to trough. D) Length of wave. Show Answer Correct Answer: C) Distance from midpoint to crest or from midpoint to trough. 32. The number of waves per second is called ..... A) Wavelength. B) Amplitude. C) Frequency. D) Oscillation. Show Answer Correct Answer: C) Frequency. 33. Two sound waves have frequencies of 250Hz and 300Hz. The speed of sound is 340ms$^{-1}$. What is the difference between the wavelengths of the two waves? A) 6.8. B) 0.23 m. C) 1.1 m. D) 1.6 m. Show Answer Correct Answer: B) 0.23 m. 34. What type of waves can only travel through matter? A) Mechanical. B) Kinetical. C) Material. D) Potential. Show Answer Correct Answer: A) Mechanical. 35. In which material does sound travel fastest? A) Solid. B) Liquid. C) Gases. D) None of the above. Show Answer Correct Answer: A) Solid. 36. What do you call it when waves pass through a given point or medium. A) Transmission. B) Refraction. C) Absorption. D) Reflection. Show Answer Correct Answer: A) Transmission. 37. As the frequency of a sound wave increases, the pitch ..... A) Tightens. B) Dies. C) Randomizes. D) Increases. Show Answer Correct Answer: D) Increases. 38. A ray of light hits water at an angle of incidence of 34.1$^\circ$. What is the angle of refraction in the water? A) 24.9$^\circ$. B) 0.339$^\circ$. C) 34.1$^\circ$. D) None of the above. Show Answer Correct Answer: A) 24.9$^\circ$. 39. A moving bicycle is an example of harmonic motion. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 40. A part in a longitudinal wave where the particles are spread apart A) Rarefaction. B) Trough. C) Crest. D) Compression. Show Answer Correct Answer: A) Rarefaction. 41. What EM waves causes sunburn? A) Microwaves. B) Ultraviolet. C) Visible light. D) Infrared. Show Answer Correct Answer: B) Ultraviolet. 42. The period of a pendulum depends on the amplitude of its swing. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 43. Ultrasonic waves are waves that have ..... above 20, 000 Hz. (Think what is measured in Hertz) A) Compression. B) Amplitude. C) Frequency. D) Wavelentgh. Show Answer Correct Answer: C) Frequency. 44. Sound waves have the fastest speed when traveling through a ..... A) Tornado. B) Liquid. C) Gas. D) Solid. Show Answer Correct Answer: D) Solid. 45. What is the phenomenon of splitting white light into its component colors called? A) Diffraction. B) Reflection. C) Refraction. D) Dispersion. Show Answer Correct Answer: D) Dispersion. 46. Picture a bird landing at a bird feeder outside a window. The image of this bird in the window is the result of light being A) Reflected. B) Transmitted. C) Refracted. D) Absorbed. Show Answer Correct Answer: A) Reflected. 47. Which wave can travel in both a medium and a vacuum? A) Transverse. B) Longitudinal. C) Both. D) Neither. Show Answer Correct Answer: A) Transverse. 48. Through which material does sound travel slowest? A) Water. B) Paper. C) Aluminum. D) Air. E) None of the above. Show Answer Correct Answer: D) Air. 49. How is wavelength defined in the study of waves? A) The height of a wave. B) The distance from one crest to the next. C) The speed of a wave. D) The number of waves per second. Show Answer Correct Answer: B) The distance from one crest to the next. 50. Why can you not hear sound in space? A) Distance is to great. B) It has no medium. C) The medium is too thin. D) None of the above. Show Answer Correct Answer: B) It has no medium. 51. The number of waves per second is called the (a) A) A. Frequency. B) Trough. C) Amplitude. D) Wavelength. E) Crest. Show Answer Correct Answer: A) A. Frequency. 52. Waves made with a rope are ..... waves. A) Rotational. B) Periodic. C) Transverse. D) Longitudinal. Show Answer Correct Answer: C) Transverse. 53. The speed of a sound wave depends on the temperature and medium it travels through. In which medium will sound travel with the greatest amount of energy? A) Plasma. B) Solid. C) Liquid. D) Gas. Show Answer Correct Answer: B) Solid. 54. What is a "medium" in terms of waves?? A) A size between small and large. B) The material or object a wave travels through. C) How tall the wave is. D) How fast the wave is. Show Answer Correct Answer: B) The material or object a wave travels through. 55. What direction does heat move? A) From hot objects to cold objects. B) Up. C) Left. D) From cold objects to hot objects. Show Answer Correct Answer: A) From hot objects to cold objects. 56. According to your insect article, which insect is the noisiest and only males make sound? A) Cicadas. B) Bees. C) Crickets. D) Grasshoppers. Show Answer Correct Answer: C) Crickets. 57. What is the unit of frequency in the International System of Units (SI)? A) Metre. B) Hertz. C) Joule. D) Newton. Show Answer Correct Answer: B) Hertz. 58. Which wave type vibrates the particles parallel (side to side)? A) Mechanical. B) Electromagnetic. C) Longitudinal. D) Transverse. Show Answer Correct Answer: C) Longitudinal. 59. Longitudinal waves have: A) Crests and troughs. B) Crests and compressions. C) Compressions and rarefactions. D) Troughs and rarefactions. Show Answer Correct Answer: C) Compressions and rarefactions. 60. A person running is an example of harmonic motion. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. ← PreviousNext →Related QuizzesScience QuizzesClass 11 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books