This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 32 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 32 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is an example of a longitudinal mechanical wave A) Sound. B) X-Rays. C) A vibrating guitar string. D) Visible light. Show Answer Correct Answer: A) Sound. 2. Wave A is being decreased in temperature, and Wave B is moving from a liquid to a gas medium. Which statement can be made about both waves? A) They will speed up. B) They will increase the density of their medium. C) They will slow down. D) They will decrease the density of their medium. Show Answer Correct Answer: C) They will slow down. 3. What is the term for energy that travels from the sun and moves through space at the speed of light? A) Ultraviolet. B) Scattering. C) Radiation. D) Surface waves. Show Answer Correct Answer: C) Radiation. 4. The points on the standing wave with the minimum, usually zero amplitude. A) Antinodes. B) Amplitudes. C) Nodes. D) Harmonics. Show Answer Correct Answer: C) Nodes. 5. The medium through which a mechanical wave passes can be a solid, a liquid, or a gas. Properties of a wave might change when it moves from one medium to another. What happens to the speed of a wave when it moves from a gas to a solid? A) It speeds up. B) It slows down. C) It remains the same. D) It speeds up and then slows. Show Answer Correct Answer: A) It speeds up. 6. The time interval required for two identical points of adjacent waves to pass by a point. A) Amplitude $\left(A\right)$. B) Wavelength $\left(\lambda\right)$. C) Period $\left(T\right)$. D) Frequency $\left(f\right)$. Show Answer Correct Answer: C) Period $\left(T\right)$. 7. Explain how waves are transmitted through different mediums. A) By causing the medium to solidify. B) By creating a vacuum in the medium. C) By changing the color of the medium. D) Causing the particles of the medium to vibrate and transfer energy from one particle to the next. Show Answer Correct Answer: D) Causing the particles of the medium to vibrate and transfer energy from one particle to the next. 8. What best describes the doppler effect? A) An apparent change in frequency of a wave due to the relative motion between a wave source and an observer. B) When sound changes pitch. C) When light changes color. D) An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer. Show Answer Correct Answer: A) An apparent change in frequency of a wave due to the relative motion between a wave source and an observer. 9. Which diagram shows how the light from a candle is reflected by a mirror, and shows the position of the image formed? A) A. B) B. C) C. D) D. Show Answer Correct Answer: A) A. 10. What happens when light passes from air into water? A) It speeds up. B) It bends (refracts). C) It changes color. D) It disappears. Show Answer Correct Answer: B) It bends (refracts). 11. Which types of waves requires matter to carry energy? A) Electromagnetic waves only. B) Mechanical waves only. C) Electromagnetic and mechanical waves. D) Longitudinal and electromagnetic waves. Show Answer Correct Answer: B) Mechanical waves only. 12. Jerry counts the number of waves that pass a given point in a certain amount of time on the beach. What property of waves does Jerry measure? A) Period. B) Amplitude. C) Frequency. D) Wavelength. Show Answer Correct Answer: C) Frequency. 13. The height of a wave from the center is called the ..... A) Amplitude. B) Frequency. C) Wavelength. D) Oscillation. Show Answer Correct Answer: A) Amplitude. 14. A red light has a wavelength of 650nm.It is shone through a double slit spacing 0.2mm onto a screen 2m away.The fringe spacing is? A) 6.5 x 10 $^{-6}$ m. B) 1.6 x 10$^{-3}$ m. C) 6.5 x 10$^{-3}$ m. D) 1.6 x 10$^{-6}$ m. Show Answer Correct Answer: C) 6.5 x 10$^{-3}$ m. 15. The waves bend around the (edges) objects and don't only travel in straight lines. A) Reflection. B) Refraction. C) Diffraction. D) Absorption. Show Answer Correct Answer: C) Diffraction. 16. Ultrasound A) Sounds with frequencies below the range of human hearing. B) Sounds with frequencies above the range of human hearing, specifically above 20, 000 Hz. C) Sounds that can be heard by humans. D) Sounds that are inaudible to all animals. Show Answer Correct Answer: B) Sounds with frequencies above the range of human hearing, specifically above 20, 000 Hz. 17. A section of a longitudinal wave where the particles are crowded together is called a A) RAREFACTION. B) COMPRESSION. C) VIBRATION. D) SURFACE WAVE. Show Answer Correct Answer: B) COMPRESSION. 18. Infrared rays have a shorter wavelength than ..... A) Radio waves. B) Gamma rays. C) X-rays. D) Ultraviolet rays. Show Answer Correct Answer: A) Radio waves. 19. A 0.75 m open-open tube is resonating a sound wave (speed of sound is 343 m/s). What would the second harmonic frequency be? A) 228 Hz. B) 257 Hz. C) 457 Hz. D) 515 Hz. Show Answer Correct Answer: C) 457 Hz. 20. Which of the following is an example of an electromagnetic wave? A) Sound. B) Light. C) Seismic wave. D) Wave traveling through a spring. Show Answer Correct Answer: B) Light. 21. The frequency is defined as the height of the wave in metres A) True. B) False. C) Don't know/Can't remember. D) None of the above. Show Answer Correct Answer: B) False. 22. In what ways does black body radiation contribute to our understanding of the universe? A) Black body radiation has no impact on our understanding of the universe. B) Black body radiation is only relevant for laboratory experiments. C) Black body radiation only affects Earth's atmosphere. D) By analyzing the spectrum of light emitted by celestial bodies, we can determine their temperature and composition, leading to a better understanding of the universe. Show Answer Correct Answer: D) By analyzing the spectrum of light emitted by celestial bodies, we can determine their temperature and composition, leading to a better understanding of the universe. 23. What is the relationship between amplitude and energy transport in a wave? A) Amplitude and energy transport are not related. B) Amplitude and energy transport are directly proportional. C) Amplitude and energy transport are inversely proportional. D) Amplitude and energy transport have a logarithmic relationship. Show Answer Correct Answer: B) Amplitude and energy transport are directly proportional. 24. A pipe that is closed at one end and open at the other resonates at a fundamental frequency of 240 Hz. The next frequency it resonates at is most nearly. A) 80 Hz. B) 120 Hz. C) 480 Hz. D) 720 Hz. E) 960 Hz. Show Answer Correct Answer: D) 720 Hz. 25. An ambulance is driving quickly towards Jack with its siren on. How will the siren sound to Jack compared to if the ambulance was stationary? A) The siren has a lower pitch. B) The siren has a higher pitch. C) The siren sounds the same. D) The siren will sound the same, just louder. Show Answer Correct Answer: B) The siren has a higher pitch. ← 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