This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 31 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 31 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the medium in terms of wave propagation? A) The initial point of a wave. B) The highest point of a wave. C) Material through which a mechanical wave moves. D) The measurement of wave speed. Show Answer Correct Answer: C) Material through which a mechanical wave moves. 2. How does a longitudinal wave tend to move? A) Back and forth. B) Up and down. C) All the above. D) None of the above. Show Answer Correct Answer: A) Back and forth. 3. How do sound waves create differences in air pressure? A) By electromagnetic fields. B) By thermal expansion. C) By particle displacement. D) By chemical reactions. Show Answer Correct Answer: C) By particle displacement. 4. This wave is used in long distance communication. A) Radiowaves. B) Microwaves. C) Infrared Radiation. D) Visible Light. Show Answer Correct Answer: A) Radiowaves. 5. What phenomenon only occurs with transverse waves? A) Reflection. B) Refraction. C) Polarization. D) Diffraction. Show Answer Correct Answer: C) Polarization. 6. How does diffraction occur with waves? A) Diffraction occurs when waves reflect off surfaces at an angle. B) Diffraction occurs when waves bend and spread as they pass through an opening or around obstacles. C) Diffraction happens when waves collide and cancel each other out. D) Diffraction is the process of waves amplifying as they travel through a medium. Show Answer Correct Answer: B) Diffraction occurs when waves bend and spread as they pass through an opening or around obstacles. 7. Which statement best describes how waves carry energy? A) Energy moves from one place to another through the wave. B) Energy increases as it moves through the wave. C) Energy is completely consumed by the beginning of the wave. D) Energy builds through the wave and is released at the end. Show Answer Correct Answer: A) Energy moves from one place to another through the wave. 8. Eyeglasses bend light rays so they focus on your retina and you see clearly. This bending of light is called A) Refraction. B) Diffraction. C) Interference. D) Reflection. Show Answer Correct Answer: A) Refraction. 9. When green and red light are shone in one place the resulting colour is A) Red. B) Green. C) Yellow. D) White. Show Answer Correct Answer: C) Yellow. 10. Which electromagnetic wave is responsible for cell phones? A) Gamma. B) Xray. C) Microwaves. D) Radio. Show Answer Correct Answer: D) Radio. 11. Longest wavelength in the visible light spectrum. A) Gamma. B) Radio. C) Red. D) Violet. Show Answer Correct Answer: C) Red. 12. Which device is commonly used to detect objects located underwater by using high-frequency sound waves? A) Amplifier. B) Sonar. C) Radar. D) Microphone. Show Answer Correct Answer: B) Sonar. 13. The speed at which a wave travels through a medium A) Frequency. B) Wavelength. C) Wavespeed. D) Amplitude. Show Answer Correct Answer: C) Wavespeed. 14. What is a medium? A) Something between a small and a large?. B) The substance through which a wave can travel. C) A pattern of vibration that simulates when a wave is standing still. D) The distance from any point on a wave to an identical point on the next wave. Show Answer Correct Answer: B) The substance through which a wave can travel. 15. What does "compression" refer to in a longitudinal wave? A) The part where wave particles are spread apart. B) The bending of the wave. C) The part where wave particles of the medium are close together. D) The reduction in wave frequency. Show Answer Correct Answer: C) The part where wave particles of the medium are close together. 16. What is the term for the distance between two consecutive crests in a wave? A) Amplitude. B) Frequency. C) Wavelength. D) Velocity. Show Answer Correct Answer: C) Wavelength. 17. The densest part of a longitudinal wave is called a A) Compression. B) Rarefaction. C) Amplitude. D) Transform. Show Answer Correct Answer: A) Compression. 18. Oscillation A) Back and forth or repeating movement. B) Steady and constant movement. C) Random and chaotic movement. D) Slow and gradual movement. Show Answer Correct Answer: A) Back and forth or repeating movement. 19. Which of the following is a characteristic of a longitudinal wave? A) Particles move parallel to the wave direction. B) Particles move perpendicular to the wave direction. C) Wave can travel through a vacuum. D) Wave speed is independent of the medium. Show Answer Correct Answer: A) Particles move parallel to the wave direction. 20. Imagine one end of a rope is tied to a door handle. The other end is caused to vibrate vertically(up & down). The wave that travels along the rope is an example of a(n) ..... A) Electromagnetic Wave. B) Microwave. C) Transverse Wave. D) Longitudinal Wave. Show Answer Correct Answer: C) Transverse Wave. 21. Which of the following is a measure of the number of complete waves that pass a point in a certain amount of time? A) Wavelength. B) Amplitude. C) Frequency. D) Velocity. Show Answer Correct Answer: C) Frequency. 22. Which of the following best describes the phenomenon of diffraction? A) The bending of waves around obstacles. B) The change in direction of waves as they pass from one medium to another. C) The superposition of two or more waves. D) The increase in amplitude of a wave. Show Answer Correct Answer: A) The bending of waves around obstacles. 23. When is the conduction current the same as the displacement current? A) When the source is ac. B) When the source is dc. C) When the source is either an ac or a dc. D) When the source is neither dc nor ac. Show Answer Correct Answer: A) When the source is ac. 24. What is refraction? A) When lights hides. B) When light bends or changes direction. C) When light bounces off water. D) None of the above. Show Answer Correct Answer: B) When light bends or changes direction. 25. What type of EM radiation is utilized in treating cancer, using its high energy to destroy the cells in a tumour? A) Gamma ray. B) X-ray. C) Visible light. D) Microwave. Show Answer Correct Answer: A) Gamma ray. ← PreviousNext →Related QuizzesClass 11 Physics (Part Ii) Chapter 17 Waves Quiz 1Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 2Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 3Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 4Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 5Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 6Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 7Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 8Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 9Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books