This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 10 Oscillations And Waves – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A particle executes SHM with amplitude of 20 cm and time period of 12 s. What is the minimum time required for it to move between two points 10 cm on either side of the mean position? A) 4 s. B) 2 s. C) 1 s. D) 3 s. Show Answer Correct Answer: B) 2 s. 2. A violin string could vibrate with frequency of 1 kHz. The time period is ..... A) 1000 s. B) 10 s. C) 0.1 s. D) 0.001 s. Show Answer Correct Answer: D) 0.001 s. 3. Bernoulli's principle states that A) Pressure is transmitted equally in all directions in the fluid. B) Buoyant force is equal to the weight of fluid displaced. C) When the velocity of a fluid increases, the pressure in the fluid decreases. D) None of the above. Show Answer Correct Answer: C) When the velocity of a fluid increases, the pressure in the fluid decreases. 4. If a 30 kg mass is hung from a spring with a spring constant of 15 N/m, what will be its period? A) 6.3 s. B) 8.9 s. C) 5.0 s. D) 2.8 s. Show Answer Correct Answer: B) 8.9 s. 5. Why can't you hear an alarm going off in a vacuum chamber? A) Sound is a transverse wave and do not need a medium. B) Sound is a mechanical wave which cannot travel without a medium. C) Sound is a electromagnetic wave which can travel in vacuum. D) Sound is a longitudinal wave which can travel in vacuum. Show Answer Correct Answer: B) Sound is a mechanical wave which cannot travel without a medium. 6. What is the period of a pendulum with a length of 2.4 m (the pendulum is on Earth)? A) 3.1 sec. B) 1.9 sec. C) 9.3 sec. D) 5.1 sec. Show Answer Correct Answer: A) 3.1 sec. 7. In light damping ..... A) The amplitude of oscillations in the system gradually gets smaller each cycle. B) The system returns to its equilibrium position in a short time. C) The system returns to its equilibrium in a long time. D) The system does not return to the equilibrium. Show Answer Correct Answer: A) The amplitude of oscillations in the system gradually gets smaller each cycle. 8. When a wave strikes an object and bounces off (example echo) A) Medium. B) Refraction. C) Reflection. D) Interference. Show Answer Correct Answer: C) Reflection. 9. The frequency at which an object undergoes resonance is called the object's ..... A) Natural frequency. B) Resonant frequency. C) Polarised frequency. D) Damped frequency. Show Answer Correct Answer: B) Resonant frequency. 10. In a longitudinal wave, the particles of the medium oscillate: A) Perpendicular to the wave direction. B) Parallel to the wave direction. C) In circular paths. D) Not at all; they are stationary. Show Answer Correct Answer: B) Parallel to the wave direction. 11. A 4 kg block hangs from a spring extending it 16 cm from its unstretched position.a. What is the spring constant?b. What is the frequency of the oscillations? A) 245 N/m, 1.24 Hz. B) 24.5 N/m, 0.124 Hz. C) 245 N/m, 12.4 Hz. D) 24.5 N/m, 1.24 Hz. Show Answer Correct Answer: A) 245 N/m, 1.24 Hz. 12. A male's voice can be distinguished from a female's voice by A) Amplitude. B) Pitch. C) Wavelength. D) None of the above. Show Answer Correct Answer: B) Pitch. 13. An object undergoes forced vibrations when ..... A) A periodic force is applied to it. B) It is forced to vibrate. C) It vibrates at its natural frequency. D) The amplitude of oscillations increases in amplitude. Show Answer Correct Answer: A) A periodic force is applied to it. 14. Which of the following best describes the image formed by a plane mirror? A) Real and inverted. B) Virtual and upright. C) Real and upright. D) Virtual and inverted. Show Answer Correct Answer: B) Virtual and upright. 15. A spring having with a spring constant 100 N m-1 is mounted on a horizontal table as shown in Fig. A mass of 2 kg is attached to the free end of the spring. The mass is then pulled sideways to a distance of 1.0 cm and released the frequency of oscillations, acceleration of the mass, and the maximum speed of the mass are respectively: A) 1.1, 0.5, 0.07. B) 5.1, 0.7, 0.02. C) 8.1, 0.9, 0.03. D) 7.1, 0.8, 0.01. Show Answer Correct Answer: A) 1.1, 0.5, 0.07. 16. What are the parts of a transverse wave? A) Compressions and rarefactions. B) Crests and troughs. C) Compressions and crests. D) Rarefactions and troughs. Show Answer Correct Answer: B) Crests and troughs. 17. The number of cycles that are completed per second is called the ..... and is measured in ..... A) Frequency, Hertz. B) Wavelength, meters. C) Amplitude, meters. D) Period, seconds. Show Answer Correct Answer: A) Frequency, Hertz. 18. A butcher puts 300 g of chopped beef in the 1 kg pan and places it on top of his scale. The scale has a spring constant of 400 N/m. What is the period of vibration of the scale? A) 0.36 s. B) 0.02 s. C) 5.5 s. D) 1.3 s. Show Answer Correct Answer: A) 0.36 s. 19. In critical damping ..... A) The amplitude of oscillations in the system gradually gets smaller each cycle. B) The system returns to its equilibrium position in a short time. C) The system returns to its equilibrium in a long time. D) The system does not return to the equilibrium. Show Answer Correct Answer: B) The system returns to its equilibrium position in a short time. 20. The maximum displacement from the equilibrium positin is called ..... of the oscillation A) Frequency. B) Period. C) Amplitude. D) None of the above. Show Answer Correct Answer: C) Amplitude. 21. What is an example of an oscillating system mentioned in the text? A) A pendulum. B) A piston in a motor car engine. C) A swinging rope. D) A vibrating string. Show Answer Correct Answer: B) A piston in a motor car engine. 22. If an oscillating object remains oscillating with a constant amplitude, this is an example of ..... A) Free oscillations. B) Damped oscillations. C) Equilibrium. D) Constant velocity. Show Answer Correct Answer: A) Free oscillations. 23. A wave has a frequency of 8 Hz and a wavelength of 4 meters. What is the velocity of the wave? A) 0.5 m/s. B) 2.0 m/s. C) 8.0 m/s. D) 32 m/s. Show Answer Correct Answer: D) 32 m/s. 24. What type of image is always formed by a plane mirror? A) Real and inverted. B) Virtual and inverted. C) Real and erect. D) Virtual and erect. Show Answer Correct Answer: D) Virtual and erect. 25. What is the definition of the period of a pendulum? A) One oscillation. B) The time taken for one oscillation. C) The time for one swing back and forth. D) Swing from A to B to A. Show Answer Correct Answer: B) The time taken for one oscillation. ← 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 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