This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 10 Oscillations And Waves – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the only thing that increases the period of a pendulum? A) Increase the length of the pendulum. B) Decrease the length of the pendulum. C) Increase the weight of the pendulum bulb. D) Decrease the weight of the pendulum bulb. Show Answer Correct Answer: A) Increase the length of the pendulum. 2. A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave? A) 500 m/s. B) 50 m/s. C) 5 m/s. D) 0.5 m/s. Show Answer Correct Answer: A) 500 m/s. 3. What is the main purpose of polarising sunglasses? A) To increase brightness. B) To reduce glare. C) To change color. D) To increase frequency. Show Answer Correct Answer: B) To reduce glare. 4. A 2 kg mass on a spring oscillates at 3 Hz with a maximum displacement of 17 cm. (a) Determine the wavelength of the system.(b) Find the maximum acceleration of mass during oscillation. A) $3.2$. B) 3.2 Mathematical EquivalenceON. C) All the above. D) None of the above. Show Answer Correct Answer: A) $3.2$. 5. Which of the following types of the waves is not a mechanical wave? A) Water waves. B) Light waves. C) Sound waves. D) Slinky waves. Show Answer Correct Answer: B) Light waves. 6. Resonance is ..... A) When an object is forced to vibrate at its natural frequency. B) The frequency an object vibrates at when disturbed by an outside force. C) The motion of an object moving back and forward around the equilibrium. D) An object which will oscillate without slowing down. Show Answer Correct Answer: A) When an object is forced to vibrate at its natural frequency. 7. A spring with a natural length 40 cm and a spring constant of 400 N/m is hung vertically with a 10 kg mass attached to the end. Assuming the spring's mass is negligible, what will be the final length of the spring when it reaches equilibrium? A) 25 cm. B) 35 cm. C) 40 cm. D) 50 cm. E) 65 cm. Show Answer Correct Answer: E) 65 cm. 8. Sound will not travel through ..... A) Solids. B) Liquids. C) Gases. D) Vacuum. Show Answer Correct Answer: D) Vacuum. 9. What is the key difference between an oscillation and a wave? A) Oscillations transfer energy, while waves do not. B) Oscillations are repetitive in time; waves are repetitive in both time and space and can transmit energy. C) Waves only occur in mechanical systems, while oscillations occur in all systems. D) Oscillations require a medium, but waves do not. Show Answer Correct Answer: B) Oscillations are repetitive in time; waves are repetitive in both time and space and can transmit energy. 10. Any material that a wave travels through is called a ..... A) Vibration. B) Compression. C) Medium. D) Crest. Show Answer Correct Answer: C) Medium. 11. A force of 10.5 N is applied to pull a mass attached to a spring with a spring constant of70 Nm-1. What i s the amplitude of the resulting oscillation? A) 1.5 m. B) 0.15 cm. C) 1.5 mm. D) 0.15 m. Show Answer Correct Answer: D) 0.15 m. 12. An oscillator completes 30 cycles in 15 seconds, what is its period? A) 30 seconds. B) 2 seconds. C) 0.5 seconds. D) 2 hertz. Show Answer Correct Answer: C) 0.5 seconds. 13. Which of the following is not an example of periodic motion? A) A car driving down a straight road. B) The rotation of a wheel. C) A playground swing. D) Ocean waves. Show Answer Correct Answer: A) A car driving down a straight road. 14. When a wave bends as it passes through at an angle from one medium to another.(example:pencil in a glass of water-) A) Medium. B) Refraction. C) Reflection. D) Interference. Show Answer Correct Answer: B) Refraction. 15. Light is an example of which type of wave? A) Transverse. B) Longitudinal. C) Both. D) Neither. Show Answer Correct Answer: A) Transverse. 16. In a forced vibration, the object will always vibrate at ..... A) Its natural frequency. B) The frequency of the periodic force causing it. C) Its resonant frequency. D) A polarised frequency. Show Answer Correct Answer: B) The frequency of the periodic force causing it. 17. What is the term for the maximum displacement from the equilibrium position in a wave? A) Amplitude. B) Frequency. C) Period. D) Wavelength. Show Answer Correct Answer: A) Amplitude. 18. Water waves are this type of wave. A) Transverse Wave. B) Longitudinal Wave. C) All the above. D) None of the above. Show Answer Correct Answer: A) Transverse Wave. 19. A simple harmonic oscillator takes 4.8 s to undergo five complete vibrations. What is the frequency? A) 1 Hz. B) 0.96 Hz. C) 1 s. D) 0.96 s. Show Answer Correct Answer: A) 1 Hz. 20. What are nodes in a stationary wave? A) Points of maximum amplitude. B) Points where the displacement amplitude is maximum. C) Points where the displacement amplitude is minimum. D) Points that occur at the crest of the wave. Show Answer Correct Answer: C) Points where the displacement amplitude is minimum. 21. Period is ..... A) The time taken for one complete wave oscillation. B) The maximum displacement of the particles from the mean or equilibrium position. C) The number of wave oscillations per second. D) The distance between two points on a wave that have the same displacement from the equilibrium. Show Answer Correct Answer: A) The time taken for one complete wave oscillation. 22. Which statement about the image formed by a concave (diverging) lens is always true? A) It is real and inverted. B) It is virtual and inverted. C) It is virtual and erect. D) It is real and erect. Show Answer Correct Answer: C) It is virtual and erect. 23. A change of amplitude will change: A) The wavelength. B) The loudness. C) The frequency. D) The pitch. Show Answer Correct Answer: B) The loudness. 24. What is the phase difference in degrees for 3/4 of a cycle? A) 90$^\circ$. B) 180$^\circ$. C) 270$^\circ$. D) 360$^\circ$. Show Answer Correct Answer: C) 270$^\circ$. 25. Select the best description of wave frequency. A) How often a wave occurs in a certain amount of time. B) How often a wave occurs in an hour. C) How many times something happens in a year. D) How often a wave moves in 30 minutes. Show Answer Correct Answer: A) How often a wave occurs in a certain amount of time. ← PreviousNext →Related QuizzesClass 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 1Class 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 10Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books