This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 10 Oscillations And Waves – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 12 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Frequency is measured in ..... A) Metres. B) Hertz. C) Seconds. D) Metres per second. Show Answer Correct Answer: B) Hertz. 2. Sam, the butcher, puts 3 kg of chopped beef on the 1 kg pan and places 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) 0.63 seconds. B) 0.63 Hz. C) 0.54 seconds. D) 0.54 Hz. Show Answer Correct Answer: A) 0.63 seconds. 3. What is the period of a simple pendulum of length 1.0 m? What should be its length forthe period to be tripled in value? A) 2 s, 8 m. B) 3 s, 6 m. C) 2 s, 9 m. D) 3 s, 9 m. Show Answer Correct Answer: C) 2 s, 9 m. 4. Position at which the body would come to rest if it were to lose all of its energy refers to A) Equilibrium position. B) Maximum displacement / amplitude. C) Periodic position. D) Good position. Show Answer Correct Answer: A) Equilibrium position. 5. A wave in Lake Michigan arrives on the shore every 5 seconds. It's period is ..... and its frequency is ..... A) 5 seconds; 0.2 hertz. B) 0.2 seconds; 2 hertz. C) 5 seconds; 50 hertz. D) 50 seconds; 0.2 hertz. Show Answer Correct Answer: A) 5 seconds; 0.2 hertz. 6. What is the phase difference between two points separated by a distance $\lambda/2$ $\lambda$ A) $0$. B) $\pi/2$. C) $\pi$. D) $2\pi$. Show Answer Correct Answer: C) $\pi$. 7. When a wave passes from one medium into another where its speed is different, the wave changes direction. This phenomenon is called: A) Reflection. B) Refraction. C) Diffraction. D) Interference. Show Answer Correct Answer: B) Refraction. 8. What is the term for the bending of waves around obstacles? A) Diffraction. B) Refraction. C) Interference. D) Reflection. Show Answer Correct Answer: A) Diffraction. 9. For a system in simple harmonic motion, which of the following is the number of cycles or vibrations per unit of time? A) Amplitude. B) Period. C) Frequency. D) Revolution. Show Answer Correct Answer: C) Frequency. 10. The number of wavelengths that pass a point each per second is: A) Frequency. B) Period. C) Longitudinal. D) Transverse wave. Show Answer Correct Answer: A) Frequency. 11. Pendulum "A" is on Jupiter Pendulum "B" is on the Moon. The Moon has less acceleration of gravity than Jupiter the pendulums have the same mass and length. Which Pendulum has the greater period? A) Pendulum A. B) Pendulum B. C) Both pendulum A & B are the same. D) None of the above. Show Answer Correct Answer: B) Pendulum B. 12. 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. (Useful equations are on the board). A) 2 sec. B) 12 sec. C) 8 sec. D) 10 sec. Show Answer Correct Answer: C) 8 sec. 13. How are mechanical waves different from electromagnetic waves? A) Mechanical waves are always transverse. B) Electromagnetic waves require a physical medium. C) Mechanical waves require a physical medium to propagate. D) Electromagnetic waves cannot exhibit interference. Show Answer Correct Answer: C) Mechanical waves require a physical medium to propagate. 14. A human heart beats 75 times in one minute. What is its frequency? A) 0.8 Hz. B) 1.25 Hz. C) 75 Hz. D) 60 Hz. Show Answer Correct Answer: B) 1.25 Hz. 15. Which of the following is/ are characteristics of simple harmonic motion?I. The acceleration is constant .II. The restoring force is proportional to the displacement.III. The frequency is independent of the amplitude. A) II only. B) I and II only. C) I and III only. D) II and III only. E) I, II, and III. Show Answer Correct Answer: D) II and III only. 16. Equilibrium is ..... A) If an object or medium is pushed equally in both directions. B) The rest point of an object or medium. C) The maximum displacement of a vibrating particle. D) The number of waves moving through a point per second. Show Answer Correct Answer: B) The rest point of an object or medium. 17. The frequency is measured by a unit called ..... A) Hertz. B) Watt / m. C) Decibel. D) M /sec. Show Answer Correct Answer: A) Hertz. 18. By what factor should the length of a simple pendulum be changed in order to triple the period of vibration? A) 3. B) 6. C) 9. D) 27. Show Answer Correct Answer: C) 9. 19. Jovian screams near a canyon and can hear his echo 3 seconds later. If the speed of sound at that time is 300 m/s, what is the distance between Jovian and the canyon> A) 900 m. B) 300 m. C) 150 m. D) 100 m. Show Answer Correct Answer: A) 900 m. 20. If a simple harmonic oscillator has a displacement of 0.02 m and acceleration equal to 2.00 m s$^{-2}$, the angular frequency is equal to: A) 10.0 rad s$^{-1}$. B) 0.10 rad s$^{-1}$. C) 100 rad s$^{-1}$. D) 1.00 rad s$^{-1}$. Show Answer Correct Answer: A) 10.0 rad s$^{-1}$. 21. For a system in simple harmonic motion, which of the following is the time required to complete a cycle of motion? A) Amplitude. B) Period. C) Frequency. D) Revolution. Show Answer Correct Answer: B) Period. 22. The maximum displacement of a point of a wave from its rest position or equilibrium point is called ..... A) Amplitude. B) Frequency. C) Crests. D) Period. Show Answer Correct Answer: A) Amplitude. 23. The maximum displacement made by oscillating body away from its rest position is ..... A) Amplitude. B) Frequency. C) Periodic time. D) Complete oscillation. Show Answer Correct Answer: A) Amplitude. 24. The total mechanical energy of a simple harmonic oscillator is A) Zero as it passes the equilibrium point. B) Zero when it reaches the maximum displacement. C) A maximum when it passes through the equilibrium point. D) A minimum when it passes through the equilibrium point. E) Constant. Show Answer Correct Answer: E) Constant. 25. Which wave travels parallel in relation to a medium? A) Transverse. B) Longitudinal. C) Both. D) Neither. Show Answer Correct Answer: B) Longitudinal. ← 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 9Class 11 Physics (Part I) Chapter 10 Oscillations And Waves Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books