This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part Ii > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 12 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If the wavelength of a sound wave produced by an audio (sound producing) source is 0.5 m, the frequency is 666 Hz, then the velocity of propagation of sound in air is ..... m/sec A) 346. B) 330. C) 333. D) 338. Show Answer Correct Answer: C) 333. 2. Fill in the blank:The ..... of a wave is the distance between two consecutive points in phase. A) Amplitude. B) Frequency. C) Wavelength. D) Velocity. Show Answer Correct Answer: C) Wavelength. 3. The number of waves that pass a fixed point in a given amount of time is ..... A) Wave speed. B) Wavelength. C) Amplitude. D) Frequency. Show Answer Correct Answer: D) Frequency. 4. A wave that has the vibration perpendicular to the direction of the wave is called: A) Longitudinal. B) Transverse. C) All the above. D) None of the above. Show Answer Correct Answer: B) Transverse. 5. You shake a slinky up and down, creating 75 waves in 45.0 s. What is the frequency of the waves that you created? A) 1.67 s. B) 0.6 Hz. C) 0.6 s. D) 1.67 Hz. Show Answer Correct Answer: D) 1.67 Hz. 6. Are destructive and constructive the same A) No. B) Yes. C) All the above. D) None of the above. Show Answer Correct Answer: A) No. 7. The frequency is defined as the number of waves that pass a point per second (a) A) A. True. B) False. C) Don't know/Can't remember. D) None of the above. Show Answer Correct Answer: A) A. True. 8. What kind of waves are longitudinal waves? A) Waves in which the oscillation is perpendicular to the direction of wave travel. B) Waves in which the oscillation is random. C) Waves in which the oscillation is in the same direction as the wave travel. D) Waves in which the oscillation is circular. Show Answer Correct Answer: C) Waves in which the oscillation is in the same direction as the wave travel. 9. Waves transport the energy of disturbances. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. Which of the following occurs as the frequency of a wave decreases? A) The wavelength increases. B) The wavelength decreases. C) The wavelength increases and then decreases. D) The wavelength remains the same. Show Answer Correct Answer: A) The wavelength increases. 11. Helpful in military night vision goggles A) Radio wave. B) Microwave. C) Infrared. D) Light. Show Answer Correct Answer: C) Infrared. 12. The maximum refractive angle when a light ray can travel from oil to air is ..... A) 90. B) 60. C) 0. D) 45. Show Answer Correct Answer: A) 90. 13. What type of wave is sound classified as? A) Surface wave. B) Longitudinal wave. C) Transverse wave. D) Electromagnetic wave. Show Answer Correct Answer: B) Longitudinal wave. 14. What is the period of a pendulum A) How many times the pendulum swings before it stops. B) How many times the pendulum passes a point in one second. C) One complete cycle (complete to and fro motion). D) One complete cycle bouncing up and down. Show Answer Correct Answer: C) One complete cycle (complete to and fro motion). 15. The motion of the listener or the source of sound causes A) Resonance. B) The Doppler Effect. C) Echoes. D) Shock waves. Show Answer Correct Answer: B) The Doppler Effect. 16. Explain the concept of wave frequency. A) Wave frequency is the number of cycles of a wave that occur in one second, measured in hertz (Hz). B) Wave frequency is the speed of a wave in a medium. C) Wave frequency refers to the distance between two consecutive peaks of a wave. D) Wave frequency is the amplitude of a wave measured in decibels. Show Answer Correct Answer: A) Wave frequency is the number of cycles of a wave that occur in one second, measured in hertz (Hz). 17. The color of an object is due to A) The wavelength it reflects. B) The wavelength it absorbs. C) The medium of the frequency. D) The speed it absorbs. Show Answer Correct Answer: A) The wavelength it reflects. 18. An example of this is an echo A) Reflection. B) Refraction. C) Transmission. D) Absorption. Show Answer Correct Answer: A) Reflection. 19. A sheet of ice floats on water. A source of sound S is positioned at the edge of the ice sheet. Four microphones are placed equal distances from S. Which microphone detects the sound from S first? A) D. B) C. C) B. D) A. Show Answer Correct Answer: C) B. 20. The critical angle of a block is 45 degrees. What is the refractive index of this block? A) 1.40. B) 1.39. C) 1.41. D) 1.42. Show Answer Correct Answer: C) 1.41. 21. What is another word we use to describe empty space? A) Medium. B) Speed. C) Vacuum. D) Water. Show Answer Correct Answer: C) Vacuum. 22. Shortest wavelength in the visible light spectrum. A) Red. B) Violet. C) Gamma. D) Radio. Show Answer Correct Answer: B) Violet. 23. The distance between two peaks of a wave is called the: A) Wavelength. B) In-phase. C) Period. D) Wave Front. Show Answer Correct Answer: A) Wavelength. 24. The speed of light is denoted by what symbol? A) A. B) V. C) B. D) C. Show Answer Correct Answer: D) C. 25. Which of the following is the unit of frequency? A) M. B) S. C) Hz. D) M/s. Show Answer Correct Answer: C) Hz. 26. What is resonance in the context of waves? A) Resonance is the absorption of energy by a medium without any change in amplitude. B) Resonance is the phenomenon where a system responds with increased amplitude at its natural frequency when subjected to external periodic forces. C) Resonance is the phenomenon where a system vibrates randomly without any external influence. D) Resonance occurs when waves travel in opposite directions and cancel each other out. Show Answer Correct Answer: B) Resonance is the phenomenon where a system responds with increased amplitude at its natural frequency when subjected to external periodic forces. 27. Which type of wave has particles that vibrate parallel to the direction of the wave? A) Mechanical waves. B) Electromagnetic waves. C) Longitudinal waves. D) Transverse waves. Show Answer Correct Answer: C) Longitudinal waves. 28. Light is an example of a transverse wave A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 29. What does the wavelength of a sound wave tell you? A) The amplitude of a waveform. B) How loud or soft a sound is. C) How high or low pitched a sound is. D) None of the above. Show Answer Correct Answer: C) How high or low pitched a sound is. 30. If the frequency of a wave is 50 Hz and its wavelength is 2 meters, what is its speed? A) 25 Hz. B) 100 m/s. C) 25 m/s. D) 50 m/s. Show Answer Correct Answer: B) 100 m/s. 31. Light can travel through A) Water. B) Air. C) Vacuum. D) Solids. E) All of these. Show Answer Correct Answer: E) All of these. 32. Wavelength represents the: A) Wave amplitude. B) Wave speed. C) Wave frequency. D) Distance between wave peaks. Show Answer Correct Answer: D) Distance between wave peaks. 33. The amount of energy a wave carries corresponds with its ..... A) Amplitude. B) Crest. C) Wavelength. D) Period. Show Answer Correct Answer: A) Amplitude. 34. Which of the following types of waves require a medium? A) X ray. B) Radio. C) Sound. D) Light. Show Answer Correct Answer: C) Sound. 35. What is the difference between a node and an antinode in a standing wave? A) Nodes and antinodes are the same; both represent points of zero displacement. B) Nodes are found at the center of the wave; antinodes are at the ends of the wave. C) Nodes are points of maximum displacement; antinodes are points of no displacement. D) Nodes are points of no displacement; antinodes are points of maximum displacement. Show Answer Correct Answer: D) Nodes are points of no displacement; antinodes are points of maximum displacement. 36. In a given medium, as the frequency of a wave increases, its speed ..... A) Increases. B) Decreases. C) Remains the same. D) None of the above. Show Answer Correct Answer: C) Remains the same. 37. What is the formula for finding the time period (T) of a wave? A) T = f * $\lambda$. B) T = 1/f. C) T = $\lambda$ / f. D) T = f / $\lambda$. Show Answer Correct Answer: B) T = 1/f. 38. Six waves go past a fixed point in two seconds. What is the frequency of the wave? A) 6 Hz. B) 2. C) 3 Hz. D) 3. Show Answer Correct Answer: C) 3 Hz. 39. What happens to the intensity of a wave as it moves away from its source? A) It increases. B) It decreases. C) It remains constant. D) It fluctuates. Show Answer Correct Answer: B) It decreases. 40. Which electromagnetic wave is used in satellite communications? A) Gamma rays. B) X-rays. C) Microwaves. D) Infrared radiation. Show Answer Correct Answer: C) Microwaves. 41. For resonance to occur, closed or fixed ends must have A) Nodes. B) Antinodes. C) All the above. D) None of the above. Show Answer Correct Answer: A) Nodes. 42. An electric guitar is generating a sound of constant frequency. An increase in which sound wave characteristic would result in an increase in loudness? A) Period. B) Wavelength. C) Amplitude. D) Speed. Show Answer Correct Answer: C) Amplitude. 43. Which waves are used by artificial satellites for communication? A) Radiowaves. B) Microwaves. C) X-Rays. D) Infrared rays. Show Answer Correct Answer: B) Microwaves. 44. Microwaves are used in A) Electrical heaters. B) The transmission of television signals. C) Medical Imaging. D) Satellite communications. Show Answer Correct Answer: D) Satellite communications. 45. What happens to the frequency of a wave if the wavelength is doubled, assuming the speed of the wave remains constant? A) It halves. B) It quadruples. C) It remains the same. D) It doubles. Show Answer Correct Answer: A) It halves. 46. What occurs when light passes from water into flint glass? A) Its speed decreases, its wavelength becomes shorter, and its frequency remains the same. B) Its speed decreases, its wavelength becomes shorter, and its frequency increases. C) Its speed increases, its wavelength becomes longer, and its frequency remains the same. D) Its speed increases, its wavelength becomes longer, and its frequency decreases. Show Answer Correct Answer: A) Its speed decreases, its wavelength becomes shorter, and its frequency remains the same. 47. What is the medium for sound waves to travel through? A) Air, water, or solids. B) Magnetic fields only. C) Electrical fields only. D) Vacuum. Show Answer Correct Answer: A) Air, water, or solids. 48. Which statement best defines a wave medium? A) The material through which a wave travels. B) A point halfway between the crest and trough. C) The distance from one wave crest to the next. D) The speed at which waves travel in water. Show Answer Correct Answer: A) The material through which a wave travels. 49. How do noise-canceling headphones use wave properties? A) By increasing wave amplitude. B) By generating destructive interference. C) By amplifying background noise. D) By reflecting sound waves. Show Answer Correct Answer: B) By generating destructive interference. 50. According to Wikipedia (and as of this writing), Tim Ahlstrom of Oconomowoc, WI holds the record for hand clapping. He is reported to have clapped his hands 793 times in 60.0 seconds.What is the frequency of Mr. Ahlstrom's hand clapping during this 60.0-second period? A) 25.1 Hz. B) 26.3 Hz. C) 17.2 Hz. D) 13.2 Hz. Show Answer Correct Answer: D) 13.2 Hz. 51. When two waves collide to make one large amplitude A) Constructive interference. B) Resonance. C) Destructive interference. D) Reflection. Show Answer Correct Answer: A) Constructive interference. 52. What type of waves seem to be standing still? A) Surface waves. B) Standing waves. C) Reflection waves. D) Tsunami waves. Show Answer Correct Answer: B) Standing waves. 53. What type of event occurs on a transform plate boundary? A) Earthquake. B) Volcano Eruption. C) Mountain Building. D) None of the above. Show Answer Correct Answer: A) Earthquake. 54. Waves that use matter to transfer energy are called A) Mass. B) Mechanical. C) Medium. D) Electromagnetic. Show Answer Correct Answer: B) Mechanical. 55. What type of wave causes the matter in the medium to move perpendicular to the direction that the wave travels? A) All mechanical waves. B) Compression waves. C) Transverse waves. D) Potential waves. Show Answer Correct Answer: C) Transverse waves. 56. A substance that carries sound waves is called A) A fulcrum. B) A spectrum. C) Equilibrium. D) A medium. Show Answer Correct Answer: D) A medium. 57. Radio Waves are an example of ..... waves. A) Mechanical. B) Electromagnetic. C) Light. D) None of the above. Show Answer Correct Answer: B) Electromagnetic. 58. Continuos water waves are diffracted through a gap in a barrier in a ripple tank. Which change will increase the diffraction of the waves? A) Reduce the wavelength of the waves. B) Reduce the width of the gap. C) Increase the width of the gap. D) Increase the frequency of the waves. Show Answer Correct Answer: B) Reduce the width of the gap. 59. A remote control for a television works using what kind of electromagnetic wave? A) Microwaves. B) Visible Light. C) Infrared Radiation. D) Radiowaves. Show Answer Correct Answer: C) Infrared Radiation. 60. What is the relationship between frequency and wavelength (if wave speed remains constant)? A) When frequency increases, wavelength increases. B) When frequency decreases, wavelength decreases. C) When frequency increases, wavelength decreases. D) None of the above. Show Answer Correct Answer: C) When frequency increases, wavelength decreases. ← 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