This quiz works best with JavaScript enabled. Home > Class 11 > 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 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Frequency is the time required to complete one cycle. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 2. Which of the following statements best describes a longitudinal wave? A) A wave that vibrates at right angles to the direction of energy transfer. B) A wave that vibrates parallel to the direction of energy transfer. C) A light wave. D) A wave that crosses other wavefronts. Show Answer Correct Answer: B) A wave that vibrates parallel to the direction of energy transfer. 3. Sound moves slower under water than through the air. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 4. The ..... of a wave changes when it is reflected. A) Wavelength. B) Speed. C) Direction of propagation. D) Frequency. Show Answer Correct Answer: C) Direction of propagation. 5. A guitar string of length 80cm vibrates with a third harmonic frequency of 305Hz. What is the wavelength of the wave? A) 244cm. B) 53.3cm. C) 16.2cm. D) 3.80cm. Show Answer Correct Answer: B) 53.3cm. 6. What is the purpose of a wave? A) To confuse people. B) To transfer energy from one point to another. C) To transfer matter from one point to another. D) To alter the medium it travels through. Show Answer Correct Answer: B) To transfer energy from one point to another. 7. How are the wave velocity and the wavelength related to the wave's frequency? A) V = $\lambda$ * T. B) V = f * $\lambda$. C) V = $\lambda$ / T. D) V = f / $\lambda$. Show Answer Correct Answer: B) V = f * $\lambda$. 8. An amusement park ride swings back and forth (like a pendulum) once every 17.4 s. What is the ride's frequency? A) 0.0575 sec. B) 0.0575 hz. C) 17.4 sec. D) 17.4 hz. Show Answer Correct Answer: B) 0.0575 hz. 9. Which of the following statements is true about transverse waves? A) They always have the same frequencies. B) They always have the same velocities. C) They always have the same wavelengths. D) They always travel through a dense medium. E) The particles vibrate in perpendicular direction with respect to the wave motion. Show Answer Correct Answer: E) The particles vibrate in perpendicular direction with respect to the wave motion. 10. What do mechanical waves travel through? A) Medium. B) Empty space. C) Vacuum. D) The boo. Show Answer Correct Answer: A) Medium. 11. What is a pulse wave? A) A wave with high frequency. B) A wave that travels in a vacuum. C) A single oscillation through the medium. D) A wave with continuous oscillation. Show Answer Correct Answer: C) A single oscillation through the medium. 12. Longitudinal waves A) The particles of a medium that go back and forth in the same direction as the wave is travelling. B) The particles of a medium that move perpendicular to the direction of the wave. C) The particles of a medium that remain stationary while the wave passes. D) The particles of a medium that move in a circular motion as the wave travels. Show Answer Correct Answer: A) The particles of a medium that go back and forth in the same direction as the wave is travelling. 13. What happens to light when it passes from air into water? A) Light speeds up and changes color when entering water. B) Light disappears completely when it hits the water. C) Light bends and slows down when it passes from air into water. D) Light passes straight through without any change. Show Answer Correct Answer: C) Light bends and slows down when it passes from air into water. 14. Wave motion:A car going 30 m/s A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 15. If a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be ..... A) Moving towards the Earth. B) Moving away from the Earth. C) This is a trick question that cannot be answered. D) It isn't a star, it is a very large blueberry. Show Answer Correct Answer: B) Moving away from the Earth. 16. Define the word:Crest A) The highest point of a transverse wave. B) The lowest point of a transverse wave. C) The center of a transverse wave. D) The distance between two points on a wave. Show Answer Correct Answer: A) The highest point of a transverse wave. 17. A string of linear density 1.5 g/m is under a tension of 20 N. What should be its length if its fundamental resonance frequency is 220 Hz? A) 0.26 m. B) 0.96 m. C) 1.1 m. D) 1.2 m. Show Answer Correct Answer: A) 0.26 m. 18. The number of ocean waves that pass a buoy in one second is the ..... of the wave. A) Amplitude. B) Wavelength. C) Frequency. D) Rarefaction. Show Answer Correct Answer: C) Frequency. 19. How many wavelengths are created in an open-closed tube vibrating at its fundamental frequency? A) 1/4. B) 1/2. C) 1. D) 5/4. Show Answer Correct Answer: A) 1/4. 20. Waves that have a (a) frequency have more energy. A) A. higher. B) Lower. C) All the above. D) None of the above. Show Answer Correct Answer: A) A. higher. 21. What happens to a wave when it reflects off a surface? A) The wave loses energy and dissipates. B) The wave changes direction, following the law of reflection. C) The wave speeds up and continues in the same direction. D) The wave becomes a standing wave without reflection. Show Answer Correct Answer: B) The wave changes direction, following the law of reflection. 22. What is the name of the instrument that measures movements in the ground during an earthquake and creates electric signals that can be read to determine an earthquake's magnitude? A) Seismometer. B) Seismic Station. C) Seismogram. D) Seismograph. Show Answer Correct Answer: A) Seismometer. 23. What part of the visible spectrum has the highest energy? A) Red. B) Orange. C) Green. D) Violet. Show Answer Correct Answer: D) Violet. 24. What is the frequency of a sound wave? A) The frequency of a sound wave is determined by its amplitude. B) The frequency of a sound wave is measured in decibels (dB). C) The frequency of a sound wave is the speed of sound in meters per second. D) The frequency of a sound wave is measured in hertz (Hz). Show Answer Correct Answer: D) The frequency of a sound wave is measured in hertz (Hz). 25. Young's double slit experiment is performed.$\lambda$=590nm, screen distance L=1.2m, fringe separation x=3.5 mm. Calculate the slit separation d. A) 2.0 x 10$^{-4}$ m. B) 1.7 x 10$^{-9}$ m. C) 5.2 x 10$^{-4}$ m. D) 6.3 x 10$^{-7}$ m. Show Answer Correct Answer: A) 2.0 x 10$^{-4}$ m. ← 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