This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 29 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 29 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. An example of this is an echo A) Refraction. B) Reflection. C) Transmission. D) Absorption. Show Answer Correct Answer: B) Reflection. 2. A sheet of ice floats on water. A source of sound S is positioned at the edge of the ice sheet. Four microphones are placed equal distances from S. Which microphone detects the sound from S first? A) A. B) B. C) C. D) D. Show Answer Correct Answer: B) B. 3. The critical angle of a block is 45 degrees. What is the refractive index of this block? A) 1.39. B) 1.40. C) 1.41. D) 1.42. Show Answer Correct Answer: C) 1.41. 4. What is another word we use to describe empty space? A) Medium. B) Vacuum. C) Water. D) Speed. Show Answer Correct Answer: B) Vacuum. 5. Shortest wavelength in the visible light spectrum. A) Red. B) Gamma. C) Radio. D) Violet. Show Answer Correct Answer: D) Violet. 6. The distance between two peaks of a wave is called the: A) Period. B) Wave Front. C) In-phase. D) Wavelength. Show Answer Correct Answer: D) Wavelength. 7. The speed of light is denoted by what symbol? A) A. B) B. C) C. D) V. Show Answer Correct Answer: C) C. 8. Which of the following is the unit of frequency? A) M/s. B) S. C) Hz. D) M. Show Answer Correct Answer: C) Hz. 9. What is resonance in the context of waves? A) Resonance is the absorption of energy by a medium without any change in amplitude. B) Resonance is the phenomenon where a system responds with increased amplitude at its natural frequency when subjected to external periodic forces. C) Resonance is the phenomenon where a system vibrates randomly without any external influence. D) Resonance occurs when waves travel in opposite directions and cancel each other out. Show Answer Correct Answer: B) Resonance is the phenomenon where a system responds with increased amplitude at its natural frequency when subjected to external periodic forces. 10. Which type of wave has particles that vibrate parallel to the direction of the wave? A) Longitudinal waves. B) Transverse waves. C) Mechanical waves. D) Electromagnetic waves. Show Answer Correct Answer: A) Longitudinal waves. 11. Light is an example of a transverse wave A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. What does the wavelength of a sound wave tell you? A) The amplitude of a waveform. B) How loud or soft a sound is. C) How high or low pitched a sound is. D) None of the above. Show Answer Correct Answer: C) How high or low pitched a sound is. 13. If the frequency of a wave is 50 Hz and its wavelength is 2 meters, what is its speed? A) 25 m/s. B) 50 m/s. C) 100 m/s. D) 25 Hz. Show Answer Correct Answer: C) 100 m/s. 14. Light can travel through A) Water. B) Air. C) Vacuum. D) Solids. E) All of these. Show Answer Correct Answer: E) All of these. 15. Wavelength represents the: A) Distance between wave peaks. B) Wave speed. C) Wave frequency. D) Wave amplitude. Show Answer Correct Answer: A) Distance between wave peaks. 16. The amount of energy a wave carries corresponds with its ..... A) Crest. B) Wavelength. C) Amplitude. D) Period. Show Answer Correct Answer: C) Amplitude. 17. Which of the following types of waves require a medium? A) Light. B) Sound. C) X ray. D) Radio. Show Answer Correct Answer: B) Sound. 18. What is the difference between a node and an antinode in a standing wave? A) Nodes and antinodes are the same; both represent points of zero displacement. B) Nodes are found at the center of the wave; antinodes are at the ends of the wave. C) Nodes are points of maximum displacement; antinodes are points of no displacement. D) Nodes are points of no displacement; antinodes are points of maximum displacement. Show Answer Correct Answer: D) Nodes are points of no displacement; antinodes are points of maximum displacement. 19. In a given medium, as the frequency of a wave increases, its speed ..... A) Increases. B) Decreases. C) Remains the same. D) None of the above. Show Answer Correct Answer: C) Remains the same. 20. What is the formula for finding the time period (T) of a wave? A) T = f / $\lambda$. B) T = $\lambda$ / f. C) T = 1/f. D) T = f * $\lambda$. Show Answer Correct Answer: C) T = 1/f. 21. Six waves go past a fixed point in two seconds. What is the frequency of the wave? A) 3. B) 6 Hz. C) 3 Hz. D) 2. Show Answer Correct Answer: C) 3 Hz. 22. What happens to the intensity of a wave as it moves away from its source? A) It increases. B) It remains constant. C) It fluctuates. D) It decreases. Show Answer Correct Answer: D) It decreases. 23. Which electromagnetic wave is used in satellite communications? A) X-rays. B) Microwaves. C) Gamma rays. D) Infrared radiation. Show Answer Correct Answer: B) Microwaves. 24. For resonance to occur, closed or fixed ends must have A) Nodes. B) Antinodes. C) All the above. D) None of the above. Show Answer Correct Answer: A) Nodes. 25. An electric guitar is generating a sound of constant frequency. An increase in which sound wave characteristic would result in an increase in loudness? A) Speed. B) Period. C) Wavelength. D) Amplitude. Show Answer Correct Answer: D) Amplitude. ← 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