This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 10 Oscillations And Waves – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. According to the equation what variable affects the period of the pendulum? A) Angle. B) Mass. C) String length. D) All variables (angle, mass, and string length). Show Answer Correct Answer: C) String length. 2. Wave is the disturbance that propagates and transfers energy ..... A) In the direction of propagation. B) In the direction opposite to that of propagation. C) In the direction perpendicular to that of propagation. D) No correct answer. Show Answer Correct Answer: A) In the direction of propagation. 3. Which statement best describes waves? A) Waves move matter from one place to another. B) Waves are repeating patterns of motion that transfer energy. C) Waves can move matter, but not energy. D) Waves are repeating patterns of motion. Show Answer Correct Answer: B) Waves are repeating patterns of motion that transfer energy. 4. Velocity of sound after Laplace's correction is A) $\sqrt{\frac{p_0}{\rho}}$. B) $\frac{\gamma p_0}{\rho_0}$. C) $\sqrt{\frac{\gamma p_0}{\rho_0}}$. D) $\sqrt{\frac{kT}{M}}$. Show Answer Correct Answer: C) $\sqrt{\frac{\gamma p_0}{\rho_0}}$. 5. Which phenomenon is best described as the spreading of waves around obstacles or through slits? A) Refraction. B) Diffraction. C) Doppler effect. D) Reflection. Show Answer Correct Answer: B) Diffraction. 6. The equation for all the possible wavelengths that can form in a standing wave in a length of string between two fixed ends is A) = 2L/n. B) = 2n/L. C) =n/2L. D) = L/2n. Show Answer Correct Answer: A) = 2L/n. 7. Match the following normal modes of two identical coupled pendulums to their descriptions:1. In-phase mode 2. Out-of-phase mode a. Both pendulums swing in the same direction with the same amplitude. b. Both pendulums swing in opposite directions with the same amplitude. A) 1-a, 2-b. B) 1-b, 2-a. C) 1-a, 2-a. D) 1-b, 2-b. Show Answer Correct Answer: A) 1-a, 2-b. 8. An oscillator completes 40 cycles in 10 seconds, what is its frequency? A) 40 hertz. B) 4 hertz. C) 0.25 hertz. D) 400 hertz. Show Answer Correct Answer: B) 4 hertz. 9. A sound wave has a frequency of $440$ $0.78$ A) $343$. B) $572$. C) $220$. D) $0.56$. Show Answer Correct Answer: A) $343$. 10. What happens when a light wave hits a mirror? A) It makes a color. B) It reflects. C) It makes a rainbow. D) It passes through. Show Answer Correct Answer: B) It reflects. 11. What is the measure of how many waves pass a point in a certain amount of time? A) Frequency. B) Wavelength. C) Midpoint. D) Crest and trough. Show Answer Correct Answer: A) Frequency. 12. A stiff ideal spring has a: A) High spring constant. B) Low spring constant. C) A varying spring constant depending on displacement. D) Spring constant which is difficult to predict. Show Answer Correct Answer: A) High spring constant. 13. Suppose that a pendulum has a period of 4.0 s at Earth's surface. If the pendulum is taken to the moon, where the acceleration due to gravity is much less than on Earth, will the pendulum's period increase, decrease, or stay the same? A) Increase. B) Decrease. C) Stays the same. D) Need more information. Show Answer Correct Answer: A) Increase. 14. A point on a standing wave that has no displacement from the rest position. A) Amplitude. B) Period. C) Antinode. D) Node. Show Answer Correct Answer: D) Node. 15. A disturbance that propagates (transfers energy from place to place) A) Wave. B) Oscillation. C) Period. D) Medium. Show Answer Correct Answer: A) Wave. 16. A pendulum is 0.75 meters long and has a period of 4.17 seconds. The Pendulum is on an unknown planet. (a) What is the gravity of the Unknown Planet?(b) What is the angular frequency of the pendulum?(c) Determine the acceleration and velocity of the pendulum at the equilibrium position A) $1.7$. B) 1.7 Mathematical EquivalenceON. C) All the above. D) None of the above. Show Answer Correct Answer: A) $1.7$. 17. What is the maximum acceleration of a platform that vibrates with an amplitude of 2.20cm at a frequency of 6.60 Hz? A) 0.378 m/s$^{2}$. B) 3.78 m/s$^{2}$. C) 378 m/s$^{2}$. D) 37.8 m/s$^{2}$. Show Answer Correct Answer: D) 37.8 m/s$^{2}$. 18. Maximum displacement from equilibrium position is called A) Trough. B) Crest. C) Amplitude. D) Equilibrium. Show Answer Correct Answer: C) Amplitude. 19. Why is a theater floor carpeted and walls and ceilings covered with fabric instead of painted walls? A) To reduce reflection and interference. B) To increase the interference of sound waves. C) To reduce diffraction. D) To reduce reflection only. Show Answer Correct Answer: A) To reduce reflection and interference. 20. Two simple harmonic oscillators of mass 12 gram and 48 gram oscillate separately under the action same restoring force. The ratio of their frequencies is A) 2:1. B) 1:2. C) 4:1. D) 1:4. Show Answer Correct Answer: A) 2:1. 21. Bunyi pantulan yang terjadi hampir bersamaan dengan bunyi asli dan terdengar saling bertumpuk disebut dengan ..... A) Gaung. B) Gema. C) Akustik. D) Feedback. Show Answer Correct Answer: A) Gaung. 22. The acceleration of a particle in SHM is: A) Always zero. B) Always constant. C) Maximum at amplitude. D) Maximum at the equilibrium position. Show Answer Correct Answer: C) Maximum at amplitude. 23. As a pendulum gets longer, what happens to the period? A) Doesn't change. B) Decreases. C) Increases. D) None of the above. Show Answer Correct Answer: C) Increases. 24. An oscillatory system is critically damped. Which statement is true? A) The amplitude of oscillation decreases exponentially. B) The displacement decreases to zero in a short time. C) Energy dissipates from the system linearly with time. D) The system takes a long time to come to rest. Show Answer Correct Answer: B) The displacement decreases to zero in a short time. 25. When an object undergoes resonance, its ..... A) Amplitude increases each cycle. B) Amplitude decreases each cycle. C) Frequency increases each cycle. D) Frequency decreases each cycle. Show Answer Correct Answer: A) Amplitude increases each cycle. ← 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 5Class 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 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books