This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 10 Oscillations And Waves – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 9 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If you take a given pendulum to the Moon, where the acceleration of gravity is less than on Earth, the resonant frequency of the pendulum will A) Increase. B) Decrease. C) Not change. D) Become zero. Show Answer Correct Answer: B) Decrease. 2. A wave with a high frequency has ..... A) A long wavelength. B) A short wavelength. C) All the above. D) None of the above. Show Answer Correct Answer: B) A short wavelength. 3. Reflection occurs when- A) A wave bends around a barrier. B) A wave bends as it moves from one medium to another. C) The substance through which a wave can travel is moving rapidly up and down. D) When a wave strikes an object or surface and bounces off. Show Answer Correct Answer: D) When a wave strikes an object or surface and bounces off. 4. For a convex (converging) lens, where must an object be placed to form a real, inverted, and diminished image? A) Between the focal point (F) and the lens. B) At the focal point (F). C) Between F and 2F. D) Beyond 2F. Show Answer Correct Answer: D) Beyond 2F. 5. What is the phase difference between two successive nodes in a standing wave? A) 45 degrees. B) 90 degrees. C) 180 degrees. D) 0 degrees. Show Answer Correct Answer: C) 180 degrees. 6. A mass is attached to a vertical spring and bobs up and down between points A and B. Where is the object located when its velocity 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. 7. Which of the following is Frequency? A) $\frac{\text{Amplitude}}{\text{Time}}$. B) $\frac{\text{Time}}{\text{Oscillations}}$. C) $\frac{\text{Time Period}}{\text{Wavelength}}$. D) $\frac{\text{Total number of Oscillations}}{\text{Total Time}}$. Show Answer Correct Answer: D) $\frac{\text{Total number of Oscillations}}{\text{Total Time}}$. 8. Mega stands for ..... A) 100. B) 1000. C) 10 000. D) 1000 000. Show Answer Correct Answer: D) 1000 000. 9. When a pendulum swings, the highest velocity is observed ..... A) As it crosses equilibrium. B) When it is farthest from equilibrium. C) 1/2 way between the highest and lowest point. D) To be constant as the pendulum swings. Show Answer Correct Answer: A) As it crosses equilibrium. 10. Calculate the time period of a wave with a frequency of 50 Hz. A) 50 seconds. B) 5 seconds. C) 0.2 second. D) 0.02 second. Show Answer Correct Answer: D) 0.02 second. 11. What units is frequency measured in? A) Meters. B) Newton. C) Hertz. D) Seconds. Show Answer Correct Answer: C) Hertz. 12. The displacement x, for a particle at time t in simple harmonic motion is given by the equation, x = 10 sin 20t where x is in meters and t is in seconds. Determine the displacement at t=10 s A) 91.3 m. B) 8.73 m. C) -91.3 m. D) -8.73 m. Show Answer Correct Answer: D) -8.73 m. 13. A pendulum is observed to complete 30 full cycles in 120 seconds. Determine the period of the pendulum. A) 90 seconds. B) 6 seconds. C) 4 seconds. D) 0.25 second. Show Answer Correct Answer: C) 4 seconds. 14. One end of the rope is vibrated to produce a wave with a wavelength of .25 m. The Frequency of the wave is 3.0 Hz. What is the speed of the wave? A) 3.00 m/s. B) 2.50 m/s. C) .75 m/s. D) 1.25 m/s. Show Answer Correct Answer: C) .75 m/s. 15. What happens when a wave traveling in a medium travels around a barrier or though a narrow opening? A) Diffraction. B) Refraction. C) Rarefaction. D) Destruction. Show Answer Correct Answer: A) Diffraction. 16. Which wave travels perpendicular in relation to a medium? A) Transverse. B) Longitudinal. C) Both. D) Neither. Show Answer Correct Answer: A) Transverse. 17. Which type of wave has oscillations moving parallel to the direction the wave energy is moving? A) Electromagnetic wave. B) Longitudinal wave. C) Radio wave. D) Transverse wave. Show Answer Correct Answer: B) Longitudinal wave. 18. The bending of a wave as it changes speed in different mediums is called A) Reflection. B) Diffraction. C) Refraction. D) Interference. Show Answer Correct Answer: C) Refraction. 19. Sound waves travel as ..... waves. A) Transverse. B) Electromagnetic. C) Longitudinal. D) Surface. Show Answer Correct Answer: C) Longitudinal. 20. What happens to wave energy in reflection mode? A) It is absorbed by the grating. B) It is transmitted through the grating. C) It is reflected back off the grating surface. D) It is lost completely. Show Answer Correct Answer: C) It is reflected back off the grating surface. 21. A force of 30 N stretches a very light ideal spring 0.73 m from equilibrium. What is the force constant (spring constant) of the spring? A) 41 N/m. B) 22 N/m. C) 34 N/m. D) 46 N/m. Show Answer Correct Answer: A) 41 N/m. 22. The wavelength of a sound wave is 20m. The frequency is 5 Hz. What is the wave speed? A) 4 m/s. B) 100 m/s. C) 25 m/s. D) 15 m/s. Show Answer Correct Answer: B) 100 m/s. 23. What is the name of the mass on a pendulum? A) Ion. B) Graviton. C) Oscillating mass. D) Bob. Show Answer Correct Answer: D) Bob. 24. Which of the following is non-oscillatory in nature? A) Under damped & over damped. B) Critically damped & over damped. C) Critically damped & under damped. D) Forced oscillation & over damped. Show Answer Correct Answer: B) Critically damped & over damped. 25. Select all that apply:The intensity pattern observed in Young's double-slit experiment is due to which of the following? A) Reflection. B) Refraction. C) Interference. D) Diffraction only. Show Answer Correct Answer: C) Interference. ← 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 10Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books