This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part Ii > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 24 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What does the color of light emitted by an object depend on? A) Its size. B) Its age. C) Its temperature. D) Its distance from Earth. Show Answer Correct Answer: C) Its temperature. 2. Describe how amplitude influences the perception of loudness in a sound wave. A) Amplitude does not affect loudness. B) Greater amplitude, louder sound. C) Greater amplitude, softer sound. D) Lesser amplitude, louder sound. Show Answer Correct Answer: B) Greater amplitude, louder sound. 3. What is the effect called when the wavelength of light changes due to an object's motion? A) The Doppler effect. B) The Newton effect. C) The Einstein effect. D) The Hubble effect. Show Answer Correct Answer: A) The Doppler effect. 4. A wave that has its amplitude in a direction parallel to its direction of motion is called a A) Transverse wave. B) Longitudinal wave. C) Pulse. D) Standing wave. Show Answer Correct Answer: B) Longitudinal wave. 5. What is the Doppler Effect primarily associated with? A) Change in wave direction. B) Change in observed frequency due to the motion of the source or observer. C) Increase in wave amplitude. D) Decrease in wave speed. Show Answer Correct Answer: B) Change in observed frequency due to the motion of the source or observer. 6. 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. 7. Which of the following waves requires a medium to travel through? A) Radio wave. B) X-ray. C) Light wave. D) Sound wave. Show Answer Correct Answer: D) Sound wave. 8. Which of the following would have the lowest pitch? A) Playing a flute. B) An angry dog's growl. C) A child's squeal. D) Striking a tuning fork against a glass jar. Show Answer Correct Answer: B) An angry dog's growl. 9. Wave that moves perpendicular to the direction of travel? A) Longitudinal. B) Water. C) Tranverse. D) Seismic. Show Answer Correct Answer: C) Tranverse. 10. 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. 11. If sounds of differing frequencies are played in succession, in which of the following would a change be detected? (Assume amplitude constant) A) Pitch. B) Wavelength. C) Speed. D) Loudness. Show Answer Correct Answer: A) Pitch. 12. A microwave has a frequency of 300MHz. What is the wavelength of these waves? A) 10 m. B) 100 m. C) 1 m. D) 1000 m. Show Answer Correct Answer: C) 1 m. 13. 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. 14. 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. 15. 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. 16. Which of the following describes the type of wave produced on a stretched guitar string after it has been plucked? A) Stationary, transverse, mechanical. B) Stationary, longitudinal, electromagnetic. C) Progressive, transverse, mechanical. D) Progressive, longitudinal, electromagnetic. Show Answer Correct Answer: A) Stationary, transverse, mechanical. 17. Sound waves strike a glass and cause it to shatter. This phenomenon illustrates A) Refraction. B) Reflection. C) Resonance. D) Diffraction. Show Answer Correct Answer: C) Resonance. 18. In a standing wave, what is the distance between two consecutive nodes? A) Two wavelengths. B) Quarter of a wavelength. C) Half a wavelength. D) One wavelength. Show Answer Correct Answer: C) Half a wavelength. 19. Water waves have a wavelength of $23cm$ $3.55Hz$ A) $0.817ms^{-1}$. B) $81.7ms^{-1}$. C) $0.154ms^{-1}$. D) $0.0648ms^{-1}$. Show Answer Correct Answer: A) $0.817ms^{-1}$. 20. In a progressive wave, what is the distance between two consecutive points in phase called? A) Wavelength. B) Amplitude. C) Frequency. D) Period. Show Answer Correct Answer: A) Wavelength. 21. The speed of light in a material is 1.7 x 108ms-1. What is the refractive index of the material? A) 2.31. B) 0.57. C) 1.43. D) 1.76. Show Answer Correct Answer: D) 1.76. 22. What do we call the lowest point of a transverse wave? A) Wavelength. B) Amplitude. C) Trough. D) Crest. Show Answer Correct Answer: C) Trough. 23. 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. 24. What happens when white light passes through a prism? A) It loses its intensity. B) It splits into a spectrum of colors. C) It becomes invisible. D) It becomes brighter. Show Answer Correct Answer: B) It splits into a spectrum of colors. 25. 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. 26. 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. 27. Open pipes start at an antinode and end at A) A node. B) An antinode. C) All the above. D) None of the above. Show Answer Correct Answer: B) An antinode. 28. As the period of a wave in a uniform medium increases, its frequency will ..... A) Unable to determine without wavelength. B) Decrease. C) Increase. D) Remain the same. Show Answer Correct Answer: B) Decrease. 29. Velocity= ..... Wavelength= .5mFrequency= 150 hertz A) .75 m/s. B) 75 m/s. C) 300 m/s. D) None of the above. Show Answer Correct Answer: B) 75 m/s. 30. What is Stefan-Boltzmann law? A) The Stefan-Boltzmann law is used to calculate the speed of light. B) The Stefan-Boltzmann law is related to Newton's laws of motion. C) The Stefan-Boltzmann law relates the total energy radiated by a black body to its temperature. D) The Stefan-Boltzmann law is a theory in quantum mechanics. Show Answer Correct Answer: C) The Stefan-Boltzmann law relates the total energy radiated by a black body to its temperature. 31. When a light wave enters a new medium and is refracted, there must be a change in the light A) Frequency. B) Color. C) Speed. D) Period. Show Answer Correct Answer: C) Speed. 32. Which of the following properties of a wave is measured in meters (m)? A) Wavelength. B) Frequency. C) Amplitude. D) Speed. Show Answer Correct Answer: A) Wavelength. 33. A wave with a large amplitude has a lot of A) Noise. B) Speed. C) Vibrations. D) Energy. Show Answer Correct Answer: D) Energy. 34. If a vibrating string with $L=2m$ $680ms^{-1}$ A) $5.88mHz$. B) $340Hz$. C) $1360Hz$. D) $170Hz$. Show Answer Correct Answer: D) $170Hz$. 35. Sound waves are produced when something is caused to A) Vibrate. B) Get warmer. C) Slow down. D) Reflect. Show Answer Correct Answer: A) Vibrate. 36. What is the unit of measurement for wave speed? A) Hertz (Hz). B) Metre (m). C) Metre/second (m/s). D) Second (s). Show Answer Correct Answer: C) Metre/second (m/s). 37. What is wave transmission? A) The movement of water in the ocean. B) Passage of a wave through a medium or across a boundary between two different media. C) The act of throwing a ball. D) The process of sending a text message. Show Answer Correct Answer: B) Passage of a wave through a medium or across a boundary between two different media. 38. Which is a transverse wave? A) Ultrasound. B) Infrasound. C) P wave. D) S wave. Show Answer Correct Answer: D) S wave. 39. Wave 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. 40. The correct order of the EM spectrum is ..... A) R M IR V UV X G. B) G X UV V M R. C) R M IR V UV G. D) R M IR UV V X G. Show Answer Correct Answer: A) R M IR V UV X G. 41. How do microphones typically detect sound? A) By capturing light waves. B) By sensing temperature changes. C) By electrical resistance changes. D) By detecting pressure changes. Show Answer Correct Answer: D) By detecting pressure changes. 42. Rank the order of sound's most EFFECTIVE media to travel through from best to worst. A) Gas, Liquid, Solid. B) Solid, Liquid, Gas. C) Gas, Solid, Liquid. D) Liquid, Solid, Gas. Show Answer Correct Answer: B) Solid, Liquid, Gas. 43. Complete the sentence:The amplitude of a wave is A) The time it takes for one complete oscillation of the wave. B) The number of waves per second. C) The distance between two successive points on a wave. D) The maximum displacement from the rest position. Show Answer Correct Answer: D) The maximum displacement from the rest position. 44. When two or more waves combine to form a single wave, it is called ..... A) Wavelength. B) Interference. C) Standing wave. D) Frequency. Show Answer Correct Answer: B) Interference. 45. Longitudinal waves move: A) At a right angle compared to the direction the wave is traveling. B) In the same direction as the wave is traveling. C) In a circle compared to the direction the wave is traveling. D) Matter. Show Answer Correct Answer: B) In the same direction as the wave is traveling. 46. Which of the following has no effect on the spacing of Young's double slit fringes A) Changing the wavelength. B) Moving the screen further away. C) Changing the size of each slit. D) Changing the frequency. Show Answer Correct Answer: C) Changing the size of each slit. 47. The type of wave in which the medium moves parallel to the wave motion is A) Electromagnetic. B) Longitudinal. C) Light. D) Transverse. Show Answer Correct Answer: B) Longitudinal. 48. Which of the following statements is true about longitudinal waves? A) They always travel through a dense medium. B) They always have the same velocities. C) The particles vibrate along the same direction as the wave motion. D) They always have the same wavelengths. E) They always have the same frequencies. Show Answer Correct Answer: C) The particles vibrate along the same direction as the wave motion. 49. A harmonic motion 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. 50. A sound wave has a frequency of 2500 Hz and a speed of 1500 m s$^{-1}$. What is the shortest distance from a point of maximum pressure in the wave to a point of minimum pressure? A) 0.15 m. B) 0.30 m. C) 1.20 m. D) 0.60 m. Show Answer Correct Answer: B) 0.30 m. 51. Which of these statements describes a characteristic of all mechanical waves? A) They travel through medium. B) They are longitudinal waves. C) They travel through empty space. D) They are transverse waves. Show Answer Correct Answer: A) They travel through medium. 52. How would you describe the movement of a longitudinal wave? A) Up and down. B) Back and forth. C) In zigzags. D) Linear. Show Answer Correct Answer: B) Back and forth. 53. If the fundamental harmonic of a trumpet is $50Hz$ $340ms^{-1}$ A) $3.4m$. B) $6.8m$. C) $1.7m$. D) $27.2m$. Show Answer Correct Answer: C) $1.7m$. 54. When two waves meet, the waves are said to be in A) Out-of-phase. B) Wave front. C) In-phase. D) Superposition. Show Answer Correct Answer: D) Superposition. 55. A wave where the particles oscillate perpendicular to the direction of energy transfer is called a ..... wave. A) Sound. B) High frequency. C) Right angled. D) Transverse. Show Answer Correct Answer: D) Transverse. 56. Plane water waves which travel from deep water to shallow water A) Undergo a change in wavelength. B) Increase their speed. C) Are diffracted. D) Undergo a change in frequency. Show Answer Correct Answer: A) Undergo a change in wavelength. 57. Waves transfer matter true or false? A) Certainly. B) False. C) I am not sure. D) True. Show Answer Correct Answer: B) False. 58. A traveling wave that causes the elements of the disturbed medium to move parallel to the direction of propagation A) Transverse wave. B) Longitudinal wave. C) Complex wave. D) None. Show Answer Correct Answer: B) Longitudinal wave. 59. Bats and dolphins use this to help them find food A) MICROWAVES. B) MAGNETISM. C) GPS. D) ECHOLOCATION. Show Answer Correct Answer: D) ECHOLOCATION. 60. Wave particles are parallel to the wave direction in ..... waves. A) Transverse. B) Longitudinal. C) All the above. D) None of the above. Show Answer Correct Answer: B) Longitudinal. ← 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