This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part Ii > Class 11 Physics (Part Ii) Chapter 16 Oscillations – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 16 Oscillations Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Unit of Frequency is A) Pascal. B) Hertz. C) Newton. D) None of the above. Show Answer Correct Answer: B) Hertz. 2. A particle is moving in a circle with uniform speed. Its motion is: A) Periodic and simple harmonic. B) Periodic but not simple harmonic. C) Simple harmonic. D) None of these. Show Answer Correct Answer: B) Periodic but not simple harmonic. 3. What is the amplitude of an oscillation? A) Minimum displacement from the equilibrium position. B) Maximum displacement from the equilibrium position. C) Frequency of the oscillation. D) Speed of the oscillation. Show Answer Correct Answer: B) Maximum displacement from the equilibrium position. 4. Two simple pendulum, A and B, are each 3.0 m long, and the period of a pendulum A is T. Pendulum A is twice as heavy as Pendulum B. What is the period of pendulum B. A) T. B) T sqrt2. C) T/sqrt2. D) 2T. Show Answer Correct Answer: A) T. 5. A pendulum makes 33 complete back and forth cycles of vibration in 11 seconds. Its period is A) 0.33 s. B) 0.33 Hz. C) 3.0 Hz. D) 3.0 s. Show Answer Correct Answer: A) 0.33 s. 6. How does the amplitude of an oscillating system change with the driving frequency in forced oscillations? A) The amplitude increases until resonance frequency and then decreases. B) The amplitude remains constant at all frequencies. C) The amplitude increases as the driving frequency decreases. D) The amplitude decreases as the driving frequency increases. Show Answer Correct Answer: A) The amplitude increases until resonance frequency and then decreases. 7. Resonance is Inversely proportional to A) Amplitude. B) Displacement. C) Damping. D) All of these. Show Answer Correct Answer: C) Damping. 8. Assertion:Sine and cosine functions are periodic functions.Reason:Sinusoidal functions repeat it values after a definite interval of time. A) Both assertion and reason are true and the reason is the correct explanation of the assertion. B) Both assertion and reason are true but reason is not the correct explanation of the assertion. C) Assertion is true but reason is false. D) Assertion and reason both are false. Show Answer Correct Answer: A) Both assertion and reason are true and the reason is the correct explanation of the assertion. 9. A tennis ball is being swung on the end of a 1.5 m (r) string and takes 1.25 seconds (T) for a complete revolution. What is the period (T) of the tennis ball? A) 1.25 s. B) 1.2 s. C) 0.021 s. D) 0.833 s. Show Answer Correct Answer: A) 1.25 s. 10. For a simple harmonic oscillator, which of the following pairs of vector quantities CAN'T both point in the same direction? (The position vector is the displacement from equilibrium.) A) Position & velocity. B) Velocity & acceleration. C) Position & acceleration. D) None of them. Show Answer Correct Answer: C) Position & acceleration. 11. When orbital speed increases, the orbital period ..... A) Increases. B) Decreases. C) Stays the same. D) None of the above. Show Answer Correct Answer: B) Decreases. 12. The displacement of a particle is represented by the equation $y=3\cos\left(\frac{\pi}{4}-3\omega t\right)$ A) Simple harmonic with period $\frac{2\pi}{3\omega}$. B) Simple harmonic with period $\frac{\pi}{\omega}$. C) Non-periodic. D) Periodic but not simple harmonic. Show Answer Correct Answer: A) Simple harmonic with period $\frac{2\pi}{3\omega}$. 13. An ornament of mass 40.0 g is attached to a vertical ideal spring with a force constant (spring constant) of 20.0 N/m. The ornament is then lowered very slowly until the spring stops stretching. How much does the spring stretch? A) 0.800 m. B) 0.0816 m. C) 0.00200 m. D) 0.0196 m. Show Answer Correct Answer: D) 0.0196 m. 14. Which of the following statements about forced oscillation is correct? A) The system oscillates with the frequency of the external force. B) The system oscillates with its natural frequency. C) The system oscillates with both frequencies. D) The system does not oscillate. Show Answer Correct Answer: A) The system oscillates with the frequency of the external force. 15. Energy transfer during oscillation occurs between: A) Kinetic energy and gravitational potential energy. B) Kinetic energy and elastic potential energy. C) Gravitational potential energy and elastic potential energy. D) Kinetic energy and thermal energy. Show Answer Correct Answer: B) Kinetic energy and elastic potential energy. 16. Critically damped oscillation occurs when: A) Damping matches the natural frequency of the system. B) Damping is unrelated to the natural frequency of the system. C) Damping is insufficient to prevent oscillation. D) Damping is excessive, preventing oscillation entirely. Show Answer Correct Answer: A) Damping matches the natural frequency of the system. 17. Which equation defines work done by the spring? A) U$_{1}$ + U$_{2}$. B) U$_{1}$-U$_{2}$. C) U$_{2}$-U$_{1}$. D) U$_{2}$ + U$_{1}$. Show Answer Correct Answer: B) U$_{1}$-U$_{2}$. 18. Total energy in case of damped oscillation during oscillation A) Increases exponentially . B) Decreases exponentially . C) Remains constant. D) Either increases or remains constant. Show Answer Correct Answer: B) Decreases exponentially . 19. The relation between velocity amplitude v, the displacement amplitude A and the angular frequency w of SHM is A) $\nu=\omega A^2$. B) $A=\omega l\upsilon$. C) $\nu=\omega A$. D) $A=\omega\nu$. Show Answer Correct Answer: C) $\nu=\omega A$. 20. Your pulse is a repeating pattern of motion. How can your pulse be related to waves? A) Waves and your pulse both have beats. B) Waves and your pulse both transfer matter. C) Waves and your pulse are examples of things that oscillate. D) Waves and your pulse both have amplitude. Show Answer Correct Answer: C) Waves and your pulse are examples of things that oscillate. 21. What is phase shift in oscillations? A) The amplitude of oscillations. B) The speed of oscillations. C) Displacement or difference in timing of two oscillating waves. D) The frequency of oscillations. Show Answer Correct Answer: C) Displacement or difference in timing of two oscillating waves. 22. The point where a wave crosses the resting line is called ..... A) Amplitude. B) Node. C) Wavelength. D) Equilibrium. Show Answer Correct Answer: B) Node. 23. Which statement is true about the energy of a system in forced oscillation? A) The system does not exchange energy. B) The system continuously receives energy from the external force. C) The system's energy remains constant. D) The system loses energy to the environment. Show Answer Correct Answer: B) The system continuously receives energy from the external force. 24. The natural frequency of an oscillating system is: A) The maximum frequency it can attain. B) The frequency at which it oscillates without any external force. C) The minimum frequency it can attain. D) The frequency at which it oscillates when driven by an external force. Show Answer Correct Answer: B) The frequency at which it oscillates without any external force. 25. A particle of mass 0.1kg performs SHM of amplitude 0.3 m. The period of SHM is 3.142 s. The maximum force that the particle will experience is ..... A) 0.6 N. B) 1.8 N. C) 0.12 N. D) 1.2 N. Show Answer Correct Answer: C) 0.12 N. 26. During the phenomenon of resonance A) The amplitude of oscillation becomes large. B) The frequency of oscillation becomes large. C) The time period of oscillation becomes large. D) All of these. Show Answer Correct Answer: A) The amplitude of oscillation becomes large. 27. A body of mass m performs simple harmonic motion with angular frequency $\omega$ A) $\sqrt{\frac{K}{2m\omega^2}}$. B) $\sqrt{\frac{K\omega^2}{2m}}$. C) $\sqrt{\frac{2K\omega^2}{m}}$. D) $\sqrt{\frac{2K}{m\omega^2}}$. Show Answer Correct Answer: D) $\sqrt{\frac{2K}{m\omega^2}}$. 28. The total energy of 1-d simple harmonic oscillator is 1.2 Joule. It's potential energy, when it is midway between mean position and extreme position, is A) 0.6 Joule. B) 2.4 Joule. C) 0.3 Joule. D) 1.2 Joule. Show Answer Correct Answer: C) 0.3 Joule. 29. Which planet has the longest orbital period? A) Neptune. B) Earth. C) Jupiter. D) None of the above. Show Answer Correct Answer: A) Neptune. 30. Two pendulums are in simple harmonic motion. Pendulum A is longer than pendulum B. Pendulum A has a larger mass than B. The period of pendulum A is A) Longer than pendulum B. B) Shorter than pendulum B. C) The same as pendulum B. D) Not enough information. Show Answer Correct Answer: A) Longer than pendulum B. 31. Increasing which of the following will increase the frequency of a spring-mass oscillator? (SELECT ALL THAT APPLY.) A) Spring constant. B) Gravitational field strength. C) Mass. D) Amplitude. E) Period. Show Answer Correct Answer: A) Spring constant. 32. Oscillation become damped due to: A) Normal force. B) Tangential force. C) Friction. D) Parallel force. Show Answer Correct Answer: C) Friction. 33. A solid sphere of mass 4kg and radius 0.05 m is suspended from a wire. What is the period of oscillation, if the torque required to twist the wire is $4\times10^{-3}$ A) 9.8 sec. B) 3.14 sec. C) 1.57 sec. D) 6.28 sec. Show Answer Correct Answer: D) 6.28 sec. 34. The frequency of a body moving with simple harmonic motion is doubled. If the amplitude remains the same, which one of the following is also doubled? A) The time period. B) The maximum velocity. C) The total energy. D) The maximum acceleration. Show Answer Correct Answer: B) The maximum velocity. 35. A mass M suspended from a string L undergoes SHM. Which of the following is true about the period of oscillations? A) The period increases with decreasing length. B) The period increases with increasing length. C) The period increases with increasing mass. D) The period increases with increasing amplitude. Show Answer Correct Answer: B) The period increases with increasing length. 36. Oscillation refers to the: A) Linearmotionofanobject. B) Circularmotionofanobject. C) Periodicmotionofanobjectaboutafixedpoint. D) Randommotionofanobject. Show Answer Correct Answer: C) Periodicmotionofanobjectaboutafixedpoint. 37. What combination of values will result in a spring-block system with the greatest frequency? A) A = 50 cm; k = 100 N/m; m = 2 kg. B) A = 75 cm; k = 100 N/m; m = 4 kg. C) A = 75 cm; k = 80 N/m; m = 2kg. D) A = 50 cm; k = 100 N/m; m = 4 kg. E) A = 50 cm; k = 80 N/m; m = 2 kg. Show Answer Correct Answer: A) A = 50 cm; k = 100 N/m; m = 2 kg. 38. Hooke's law states that the force exerted by a spring is: A) Inversely proportional to the displacement. B) Proportional to the displacement. C) Independent of the displacement. D) Quadratically related to the displacement. Show Answer Correct Answer: B) Proportional to the displacement. 39. A particle of mass 10 gram subjected to a force constant of 90 dyne/cm and a damping constant of 60 gm/sec. If it is displaced through 3 cm before being released, then it is ..... type of motion. A) Free. B) Under damped. C) Over damped. D) Critically damped. Show Answer Correct Answer: D) Critically damped. 40. ..... is the number of complete cycles in unit time A) Oscillation. B) Period. C) Frequency. D) Displacement. Show Answer Correct Answer: C) Frequency. 41. A particle executing SHM with amplitude 4 cm having total energy 6 J. The displacement of the body, such that its kinetic energy and potential energy will be 3 J each, is A) 2 cm. B) 3 cm. C) 2.83 cm. D) 1.72 cm. Show Answer Correct Answer: C) 2.83 cm. 42. A body of mass 1 Kg, executing SHM having potential energy 0.72 J at the extreme position. If amplitude of oscillation is 30 cm then it's time period is A) 3.14 sec. B) 0.0628 sec. C) 0.1256 sec. D) 1.57 sec. Show Answer Correct Answer: D) 1.57 sec. 43. The energy contained in a pendulum depends on its I. period II. amplitudeIII. mass A) I only. B) II only. C) II and III only. D) I, II, and III. Show Answer Correct Answer: C) II and III only. 44. What's the period of a simple pendulum with a length of 7 m? A) 13.9 sec. B) 11.3 sec. C) 9.7 sec. D) 7.4 sec. E) 5.3 sec. Show Answer Correct Answer: E) 5.3 sec. 45. Which planet in our solar system will have the fastest orbital speed? A) Saturn. B) Earth. C) Mercury. D) Venus. Show Answer Correct Answer: C) Mercury. 46. The total energy of 1-d simple harmonic oscillator is 1.2 erg. What is it's potential energy and kinetic energy at mean position respectively. A) 0.6 erg and 0.6 erg. B) 0 and 1.2 erg. C) 1.2 erg and 0. D) 0.2 erg and 1 erg. Show Answer Correct Answer: B) 0 and 1.2 erg. 47. In a mass-spring system, if the mass is doubled, what happens to the frequency of oscillation? A) It quadruples. B) It remains the same. C) It halves. D) It doubles. Show Answer Correct Answer: C) It halves. 48. What factors affect the damping of oscillations? A) Sound, light, and electricity. B) Air resistance, friction, and material of the oscillating object. C) Color, size, and shape. D) Temperature, pressure, and humidity. Show Answer Correct Answer: B) Air resistance, friction, and material of the oscillating object. 49. The time taken by a simple pendulum to complete each oscillation remains ..... A) Different. B) Same. C) Both (a) and (b). D) None of the above. Show Answer Correct Answer: B) Same. 50. The complete oscillation include ..... displacements A) Four. B) Two. C) Three. D) One. Show Answer Correct Answer: A) Four. 51. Quality factor of an oscillatory object, of mass 3 gram, is 10. If mass of the object is 12 gram, keeping other factors constant, then the new quality factor is A) 10. B) 40. C) 5. D) 20. Show Answer Correct Answer: D) 20. 52. A 500g toy train completes 10 laps of its circular track in 1 min 40s. The diameter of the track is 1m. Calculate the period. A) 0.167 s. B) 6 s. C) 10 s. D) 0.10 s. Show Answer Correct Answer: C) 10 s. 53. What's the mass of a spring-mass oscillator with a frequency of 0.4 Hz and a spring constant of 667 N/m? A) 211.2 kg. B) 105.6 kg. C) 170.6 kg. D) 42.2 kg. E) 84.5 kg. Show Answer Correct Answer: B) 105.6 kg. 54. A tennis coach paces back and forth along the sideline 10 times in 60 seconds. The frequency of her pacing is: A) 6.0 Hz. B) 0.167 s. C) 0.167 Hz. D) 6.0 s. Show Answer Correct Answer: C) 0.167 Hz. 55. Definition of SHM is: A) Force proportional to acceleration. B) Mass oscillating. C) Acceleration proportional to displacement and in opposite direction. D) None of the options given. Show Answer Correct Answer: C) Acceleration proportional to displacement and in opposite direction. 56. A body continues to oscillate due to A) Inertia. B) Elasticity. C) Either elasticity or inertia. D) Both elasticity and inertia. Show Answer Correct Answer: D) Both elasticity and inertia. 57. Dutch Scientist who invented a Pendulum Clock was A) Galileo Galilei in 1602. B) Christiaan Huygens 1656. C) Louis Essen and Jack Parry in 1955. D) None of the above. Show Answer Correct Answer: B) Christiaan Huygens 1656. 58. The total energy of a simple harmonic oscillator is proportional to A) Square of the displacement. B) Square of amplitude. C) Square root of amplitude. D) Amplitude. Show Answer Correct Answer: B) Square of amplitude. 59. Characteristic impedence is given by A) $\sqrt{\rho_0T_0}$. B) $\frac{T_0}{\rho_0}$. C) $\sqrt{\frac{T_0}{\rho_0}}$. D) $T_0\rho_0$. Show Answer Correct Answer: A) $\sqrt{\rho_0T_0}$. 60. What's the spring constant of a spring-mass oscillator with a mass of 202 kg and a period of 0.77 sec? A) 27, 863 N/m. B) 11, 743 N/m. C) 6725 N/m. D) 13, 450 N/m. E) 21, 084 N/m. Show Answer Correct Answer: D) 13, 450 N/m. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Physics (Part Ii) Chapter 16 Oscillations Quiz 1Class 11 Physics (Part Ii) Chapter 16 Oscillations Quiz 2Class 11 Physics (Part Ii) Chapter 16 Oscillations Quiz 4Class 11 Physics (Part Ii) Chapter 11 Mechanical Properties Of Solids QuizClass 11 Physics (Part Ii) Chapter 13 Thermal Properties Of Matter QuizClass 11 Physics (Part Ii) Chapter 14 Thermodynamics QuizClass 11 Physics (Part Ii) Chapter 15 Kinetic Theory QuizClass 11 Physics (Part Ii) Chapter 17 Waves Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books