This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 10 Oscillations And Waves – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 5 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When a body is executing SHM, the restoring force acting on the body is proportional to A) The displacement. B) The length of the pendulum. C) The mass. D) The frequency. Show Answer Correct Answer: A) The displacement. 2. Waves transfer A) Matter. B) Molecules. C) Energy. D) Atoms. Show Answer Correct Answer: C) Energy. 3. A mass is attached to a vertical spring and bobs up and down between points A and B. Where is the mass located when its kinetic energy is a maximum? A) At either A or B. B) Midway between A and B. C) One-third of the way between A and B. D) One-fourth of the way between A and B. Show Answer Correct Answer: B) Midway between A and B. 4. Find the mechanical energy of a block-spring system having a spring constant of 1.3N/cm and an amplitude of 2.4 cm. A) 3.7 $\times$. B) 3.7 $\times$. C) 3.7 $\times$. D) 3.7 $\times$. Show Answer Correct Answer: A) 3.7 $\times$. 5. The acceleration of simple pendulum is directed ..... A) Away from the euilibrium position. B) Toward the maximum displacement. C) Towards the velocity direction. D) Toward the equilibrium position. Show Answer Correct Answer: D) Toward the equilibrium position. 6. A mass-spring system can oscillate with simple harmonic motion because a compressed or stretched spring has which kind of energy? A) Kinetic. B) Mechanical. C) Gravitational potential. D) Elastic potential. Show Answer Correct Answer: D) Elastic potential. 7. For light waves, what does the displacement represent? A) Water level. B) Pressure variations. C) Electric field. D) Magnetic field. Show Answer Correct Answer: C) Electric field. 8. True or False:According to Fermat's principle, the path taken by light between two points is the one that takes the least time. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. Which statement is FALSE regarding simple harmonic motion? A) The restoring force is proportional to displacement. B) The motion is periodic. C) The acceleration is constant. D) The energy oscillates between kinetic and potential forms. Show Answer Correct Answer: C) The acceleration is constant. 10. In a resonating pipe which is open at both ends, there ..... A) Are displacement nodes at each end. B) Are displacement antinodes at each end. C) Is a displacement node at one end and a displacement antinode at the other end. D) None of the above. Show Answer Correct Answer: B) Are displacement antinodes at each end. 11. Wave speed is measured in ..... A) Metres. B) Hertz. C) Seconds. D) Metres per second. Show Answer Correct Answer: D) Metres per second. 12. An area where particles are close together when a longitudinal wave is travelling through them is called a ..... A) Rarefaction. B) Compression. C) Amplitude. D) Wavelength. Show Answer Correct Answer: B) Compression. 13. In which of the media below does sound travel the fastest? A) Solid. B) Liquid. C) Gases. D) None of the above. Show Answer Correct Answer: A) Solid. 14. A sound wave has a frequency of 50 Hz. If its wavelength is 3 m, calculate its wave speed. A) 16.7 m/s. B) 60 m/s. C) 75 m/s. D) 150 m/s. Show Answer Correct Answer: D) 150 m/s. 15. A mass attached to a spring vibrates back and forth. At the equilibrium position, the A) Acceleration reaches a maximum. B) Velocity reaches a maximum. C) Net force reaches a maximum. D) Velocity reaches zero. Show Answer Correct Answer: B) Velocity reaches a maximum. 16. The time that it takes to complete one wave cycle is called the ..... A) Frequency. B) Period. C) Amplitude. D) Wavelength. Show Answer Correct Answer: B) Period. 17. An imaginary line that is perpendicular to any surfaces is called ..... A) Imaginary line. B) Vertical line. C) Normal line. D) Straight line. Show Answer Correct Answer: C) Normal line. 18. ..... is (are) mechanical waves. A) Water waves only. B) Sound waves only. C) Microwaves only. D) Water waves and sound waves. Show Answer Correct Answer: D) Water waves and sound waves. 19. In a simple pendulum undergoing SHM, the restoring force is provided by: A) The horizontal component of the tension. B) The vertical component of the tension. C) The component of gravity tangent to the path. D) The inertia of the bob. Show Answer Correct Answer: C) The component of gravity tangent to the path. 20. What is the effect of damping on resonance? A) Decrease slightly the value of proper frequency. B) Reduce the maximum amplitude of an oscillator. C) The shape of the curve of resonance becomes broad. D) All. Show Answer Correct Answer: D) All. 21. Resonance occurs when: A) An external force has a frequency much higher than the system's natural frequency. B) An external force has a frequency equal to the system's natural frequency. C) The system's damping is maximum. D) The amplitude of oscillation is minimized. Show Answer Correct Answer: B) An external force has a frequency equal to the system's natural frequency. 22. The number of complete oscillations that are made by an oscillating body in one second is known as ..... A) Periodic time. B) Amplitude. C) Frequency. D) Time of amplitude. Show Answer Correct Answer: C) Frequency. 23. Destructive interference is A) When two waves add together and produce a wave of smaller or no amplitude. B) When two waves add together and produce a single wave of greater amplitude. C) When two waves reflect. D) None of the above. Show Answer Correct Answer: A) When two waves add together and produce a wave of smaller or no amplitude. 24. The total mechanical energy of a simple harmonic oscillator is proportional to: A) The square of its amplitude. B) Its period. C) Its maximum velocity. D) The square root of its spring constant. Show Answer Correct Answer: A) The square of its amplitude. 25. The speed of sound at 20 degrees celcius is: A) 331 m/s. B) 365 m/s. C) 621 m/s. D) 343 m/s. Show Answer Correct Answer: D) 343 m/s. ← PreviousNext →Related QuizzesClass 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 1Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 2Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 3Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 4Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 6Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 7Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 8Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 9Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 10Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books