This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part I > Class 11 Physics (Part I) Chapter 10 Oscillations And Waves – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. An object attached to an ideal spring executes simple harmonic motion. If you want to double its total energy, you could A) Double the amplitude of vibration. B) Double the force constant (spring constant) of the spring. C) Double both the amplitude and force constant (spring constant). D) Double the mass. Show Answer Correct Answer: B) Double the force constant (spring constant) of the spring. 2. The speed of sound in air is about ..... A) 300 00 0m/s. B) 30 000 m/s. C) 30 m/s. D) 300 m/s. Show Answer Correct Answer: D) 300 m/s. 3. Un pendolo compie oscillazioni armoniche di periodo T. Se sostituisci la massa con una doppia, il periodo dell'oscillazione: A) Raddoppia. B) Si dimezza. C) Diventa un quarto. D) Rimane invariato. Show Answer Correct Answer: D) Rimane invariato. 4. Select the example of a longitudinal wave. A) Radio wave. B) Light wave. C) Sound wave. D) None of the above. Show Answer Correct Answer: C) Sound wave. 5. Which equation gives the condition for constructive interference in a double-slit experiment? A) $d \sin \theta = (m+\frac{1}{2})\lambda$. B) $d \sin \theta = m\lambda$. C) $d\cos \theta = m\lambda$. D) $d \tan \theta = m\lambda$. Show Answer Correct Answer: B) $d \sin \theta = m\lambda$. 6. Which characteristic of the sound wave is related to loudness? A) Pitch. B) Wavelength. C) Amplitude. D) Frequency. Show Answer Correct Answer: C) Amplitude. 7. A net force of 430 N acts to stretch an extension spring. How far will the spring stretch if its spring constant is 700 N/m? A) $0.614$. B) 0.614 Mathematical EquivalenceON. C) All the above. D) None of the above. Show Answer Correct Answer: A) $0.614$. 8. What is the result when two waves have a phase difference of 180$^\circ$? A) They create a new wave. B) They double in intensity. C) They amplify each other. D) They cancel each other out. Show Answer Correct Answer: D) They cancel each other out. 9. Amplitude affects which characteristic of sound waves? A) Loudness. B) Frequency. C) Pitch. D) Wave speed. Show Answer Correct Answer: A) Loudness. 10. Displacement is measured in ..... A) Hertz. B) Seconds. C) Metres. D) Metres per second. Show Answer Correct Answer: C) Metres. 11. What force should be applied to compress a spring by 0.013 m if its spring constant is k = 1900 N/m? A) 0.127 N. B) 24.7 N. C) 1880 N. D) 1900 N. Show Answer Correct Answer: B) 24.7 N. 12. A wave has wavelength of 10 m and a speed of 340 m/s. What is the frequency of the wave? A) 3.4 Hz. B) 3400 Hz. C) 34 Hz. D) 34 m/s. Show Answer Correct Answer: C) 34 Hz. 13. By which of the following is sound produced? A) Rectillinear Motion. B) Electromagnetic Waves. C) Oscillations. D) Hitting your head against a pillow. Show Answer Correct Answer: C) Oscillations. 14. If the frequency of an oscillating body is 6 HZ, the periodic time is ..... sec. A) 6. B) $\frac{1}{3}$. C) 3. D) $\frac{1}{6}$. Show Answer Correct Answer: D) $\frac{1}{6}$. 15. A wave has an amplitude of 58 cm. It has a period of 0.43 seconds. What is the angular velocity (w)? A) 3.97 rad/s. B) 58.0 rad/s. C) 14.612 rad/s. D) 2.70 rad/s. Show Answer Correct Answer: C) 14.612 rad/s. 16. When a train is approaching the station, the waves are ..... increasing the ..... and ..... A) Expanded, frequency and pitch. B) Compressed, amplitude and pitch. C) Compressed, frequency and pitch. D) Expanded, pitch and amplitude. Show Answer Correct Answer: C) Compressed, frequency and pitch. 17. The ..... of a sound depends on the medium through which it's moving. A) Loudness. B) Vibration. C) Pitch. D) Speed. Show Answer Correct Answer: D) Speed. 18. The phenomenon of a wave bouncing off a surface is called ..... A) Rarefaction. B) Reflection. C) Interference. D) Refraction. Show Answer Correct Answer: B) Reflection. 19. A 0.35 kg block attached to a spring undergoes simple harmonic motion with a period of 0.85 s. What is the spring constant? A) 3.34 N/m. B) 13.2 N/m. C) 0.95 N/m. D) 19.1 N/m. Show Answer Correct Answer: D) 19.1 N/m. 20. Which force (s) is (are) present in case of damped oscillation? A) Restoring force. B) Damping force. C) Both restoring force and damping force. D) Restoring force, damping force and external periodic force. Show Answer Correct Answer: C) Both restoring force and damping force. 21. In any system in SHM, the restoring force acting on the mass in the system is proportional to A) The displacement. B) The frequency. C) The length of the pendulum. D) The mass. Show Answer Correct Answer: A) The displacement. 22. A force of 30 N stretches a very light ideal spring 0.73 m from equilibrium. (a) What is the force constant (spring constant) of the spring?(b) Find the maximum velocity after releasing. (c) What will be the angular frequency of the spring during oscillation?(d) Determine the wavelength of the system. A) $41.095$. B) 41.095 Mathematical EquivalenceON. C) All the above. D) None of the above. Show Answer Correct Answer: A) $41.095$. 23. Which one is correct, in case of oscillation? A) Displacement and restoring force are in the same direction. B) Displacement is always away from mean position where as restoring force is always towards the mean position. C) Displacement is always towards the mean position where as restoring force is always away from the mean position. D) The direction of displacement and restoring force is random. Show Answer Correct Answer: B) Displacement is always away from mean position where as restoring force is always towards the mean position. 24. What are the parts of a longitudinal wave? A) Compressions and rarefactions. B) Crests and troughs. C) Compressions and crests. D) Rarefactions and troughs. Show Answer Correct Answer: A) Compressions and rarefactions. 25. A pair of trapeze performers at the circus is swinging from ropes attached to a large elevated platform. Suppose that the performers can be treated as a simple pendulum with a length of 16 m. Determine the period for one complete back and forth cycle. A) 8 sec. B) 12 sec. C) 2 sec. D) 10 sec. Show Answer Correct Answer: A) 8 sec. 26. What is the only thing that increases the period of a pendulum? A) Decrease the weight of the pendulum bulb. B) Increase the length of the pendulum. C) Increase the weight of the pendulum bulb. D) Decrease the length of the pendulum. Show Answer Correct Answer: B) Increase the length of the pendulum. 27. A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave? A) 0.5 m/s. B) 50 m/s. C) 5 m/s. D) 500 m/s. Show Answer Correct Answer: D) 500 m/s. 28. What is the main purpose of polarising sunglasses? A) To change color. B) To increase brightness. C) To increase frequency. D) To reduce glare. Show Answer Correct Answer: D) To reduce glare. 29. 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) $3.2$. 30. Which of the following types of the waves is not a mechanical wave? A) Light waves. B) Sound waves. C) Water waves. D) Slinky waves. Show Answer Correct Answer: A) Light waves. 31. 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. 32. 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) 65 cm. B) 50 cm. C) 25 cm. D) 40 cm. E) 35 cm. Show Answer Correct Answer: A) 65 cm. 33. Sound will not travel through ..... A) Gases. B) Vacuum. C) Solids. D) Liquids. Show Answer Correct Answer: B) Vacuum. 34. 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. 35. Any material that a wave travels through is called a ..... A) Compression. B) Medium. C) Crest. D) Vibration. Show Answer Correct Answer: B) Medium. 36. 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 mm. B) 0.15 cm. C) 1.5 m. D) 0.15 m. Show Answer Correct Answer: D) 0.15 m. 37. An oscillator completes 30 cycles in 15 seconds, what is its period? A) 30 seconds. B) 0.5 seconds. C) 2 hertz. D) 2 seconds. Show Answer Correct Answer: B) 0.5 seconds. 38. When a wave bends as it passes through at an angle from one medium to another.(example:pencil in a glass of water-) A) Interference. B) Refraction. C) Reflection. D) Medium. Show Answer Correct Answer: B) Refraction. 39. Light is an example of which type of wave? A) Transverse. B) Longitudinal. C) Both. D) Neither. Show Answer Correct Answer: A) Transverse. 40. In a forced vibration, the object will always vibrate at ..... A) Its natural frequency. B) Its resonant frequency. C) A polarised frequency. D) The frequency of the periodic force causing it. Show Answer Correct Answer: D) The frequency of the periodic force causing it. 41. What is the term for the maximum displacement from the equilibrium position in a wave? A) Period. B) Amplitude. C) Wavelength. D) Frequency. Show Answer Correct Answer: B) Amplitude. 42. 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. 43. 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) 0.96 s. D) 1 s. Show Answer Correct Answer: A) 1 Hz. 44. What are nodes in a stationary wave? A) Points where the displacement amplitude is minimum. B) Points of maximum amplitude. C) Points where the displacement amplitude is maximum. D) Points that occur at the crest of the wave. Show Answer Correct Answer: A) Points where the displacement amplitude is minimum. 45. 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. 46. A change of amplitude will change: A) The frequency. B) The pitch. C) The wavelength. D) The loudness. Show Answer Correct Answer: D) The loudness. 47. What is the phase difference in degrees for 3/4 of a cycle? A) 90$^\circ$. B) 360$^\circ$. C) 180$^\circ$. D) 270$^\circ$. Show Answer Correct Answer: D) 270$^\circ$. 48. Select the best description of wave frequency. A) How often a wave occurs in a certain amount of time. B) How often a wave moves in 30 minutes. C) How often a wave occurs in an hour. D) How many times something happens in a year. Show Answer Correct Answer: A) How often a wave occurs in a certain amount of time. 49. True or False:A converging lens can form both real and virtual images. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 50. If the frequency of a simple harmonic oscillator is doubled, what happens to its period? A) It is doubled. B) It remains the same. C) It becomes four times as large. D) It is halved. Show Answer Correct Answer: D) It is halved. 51. Which phenomenon explains the bending of waves around obstacles? A) Refraction. B) Reflection. C) Interference. D) Diffraction. Show Answer Correct Answer: D) Diffraction. 52. The following are the characteristics of longitudinal waves: A) Consists of crests and throughs. B) One of the example if the vibration of strings. C) The vibration is parallel to the direction of propagation. D) Can propagate without any mediums. Show Answer Correct Answer: A) Consists of crests and throughs. 53. When the oscillator move towars right, the restoring force acts towards left, giving it a ..... acceleration. A) Positive. B) Negative. C) Zero. D) None of the above. Show Answer Correct Answer: B) Negative. 54. Which one of the following statements is TRUE when an object performs simple harmonic motion about a central point O? A) The acceleration is always away from O. B) The acceleration and velocity are always in opposite directions. C) The acceleration and the displacement from O are always in the same direction. D) The graph of acceleration against displacement is a straight line. Show Answer Correct Answer: D) The graph of acceleration against displacement is a straight line. 55. Un bambino si trova su una giostra in movimento. Chi lo vede muoversi di moto armonico? A) Un altro bambino che si trova sulla giostra. B) Il padre, che si trova in piedi a una certa distanza dalla giostra. C) Un uccello che sta volando al di sopra della giostra. D) Il bambino stesso. Show Answer Correct Answer: B) Il padre, che si trova in piedi a una certa distanza dalla giostra. 56. When two waves combine to form a new wave with a larger amplitude, it is called A) Diffraction. B) Resonance. C) Constructive Interference. D) Destructive Interference. Show Answer Correct Answer: C) Constructive Interference. 57. When is the pendulum at maximum velocity A) At its lowest point. B) At its highest point. C) It moves at a constant velocity. D) It is at rest. Show Answer Correct Answer: A) At its lowest point. 58. A wave that requires a medium through which to travel A) Longitudinal wave. B) Transverse wave. C) Standing wave. D) Mechanical wave. Show Answer Correct Answer: D) Mechanical wave. 59. A wave that moves the medium in a direction perpendicular to the direction in which the wave travels. A) Wave length. B) Transverse wave. C) Longitudinal wave. D) No work done. Show Answer Correct Answer: B) Transverse wave. 60. A wave carries ..... ? A) Matter only. B) Energy only. C) Neither. D) The matter carries the energy. Show Answer Correct Answer: B) Energy only. Next →Related QuizzesScience QuizzesClass 11 QuizzesClass 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 1 Physical World And Measurement QuizClass 11 Physics (Part I) Chapter 2 Kinematics QuizClass 11 Physics (Part I) Chapter 3 Laws Of Motion QuizClass 11 Physics (Part I) Chapter 4 Work Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books