This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 25 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 25 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In a progressive wave, what is the term for the maximum displacement from the rest position? A) Wavelength. B) Amplitude. C) Frequency. D) Period. Show Answer Correct Answer: B) Amplitude. 2. Infra red waves are A) Higher frequency than UV but lower than visible. B) Lower frequency than UV and shorter wavelength than microwaves. C) Longer wavelength than radio waves and higher frequency than microwaves. D) Shorter wavelength than gamma rays and a lower frequency than gamma rays. Show Answer Correct Answer: B) Lower frequency than UV and shorter wavelength than microwaves. 3. Light has a speed of ..... meters per second in air. A) 300. B) 300, 000. C) 3, 000, 000. D) 300, 000, 000. Show Answer Correct Answer: D) 300, 000, 000. 4. A student produces a wave in a long spring by vibrating its end. As the frequency of the vibration is doubled, the wavelength in the spring is A) Quartered. B) Halved. C) Unchanged. D) Doubled. Show Answer Correct Answer: B) Halved. 5. What is the speed of a wave with a frequency of 500 Hz and a wavelength of 0.6 meters? A) 300 m/s. B) 600 m/s. C) 100 m/s. D) 200 m/s. Show Answer Correct Answer: A) 300 m/s. 6. The following path of an electron emits a light wave that our eyes can detect. A) Ground $\rightarrow$ Excited. B) Excited $\rightarrow$ Ground. C) One full orbit of the nucleus. D) Protons emit light. The question is misleading. Show Answer Correct Answer: B) Excited $\rightarrow$ Ground. 7. As a transverse wave moves forward, the particles move: A) Perpendicular to the wave's motion. B) Parallel to the wave's motion. C) Stand in one place. D) Move completely down the spring. Show Answer Correct Answer: A) Perpendicular to the wave's motion. 8. Which equation should be used to calculate the speed of a wave? A) Speed = frequency x wavelength. B) Speed = frequency x hertz. C) Speed = period x wavelength. D) Speed = period x hertz. Show Answer Correct Answer: A) Speed = frequency x wavelength. 9. The pitch of a sound is related to its A) Amplitude. B) Frequency. C) Wavelength. D) Speed. Show Answer Correct Answer: B) Frequency. 10. What is the unit of measurement for wavelength? A) Hertz (Hz). B) Second (s). C) Metre/second (m/s). D) Metre (m). Show Answer Correct Answer: D) Metre (m). 11. How does the amplitude of a wave affect its energy? A) Energy is inversely proportional to amplitude. B) Energy is directly proportional to amplitude. C) Energy is proportional to the square of the amplitude. D) Energy is unrelated to amplitude. Show Answer Correct Answer: C) Energy is proportional to the square of the amplitude. 12. When a wave moves around a barrier or though an opening it is known as what? A) Refraction. B) Reflection. C) Diffraction. D) Interference. Show Answer Correct Answer: C) Diffraction. 13. Assume the speed of sound is 340 m/s. What is the lowest frequency that will resonate in a 2.0 m length closed pipe? A) 42.5 Hz. B) 85 Hz. C) 170 Hz. D) 680 Hz. Show Answer Correct Answer: A) 42.5 Hz. 14. A wave where the particles oscillate parallel to the direction of energy transfer is called a ..... wave. A) Parallel. B) Perpendicular. C) Transverse. D) Longitudinal. Show Answer Correct Answer: D) Longitudinal. 15. A substance (like solid, liquid or gas) that the energy of a wave can travel through A) Amplitude. B) Compression. C) Medium. D) Frequency. Show Answer Correct Answer: C) Medium. 16. Define the word:Trough A) The center of a wave. B) The resting position of a wave. C) The lowest point of a transverse wave. D) The highest point of a transverse wave. Show Answer Correct Answer: C) The lowest point of a transverse wave. 17. The higher the volume in a sound the bigger the amplitude. A) Truth. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) Truth. 18. In the equation f=v/2L, L is A) The speed of light. B) The number of antinodes. C) The length of the string. D) The length of a single cycle. Show Answer Correct Answer: C) The length of the string. 19. Resonance A) When something vibrates strong because it is pushed or shaken at just the right amount of frequency. B) When an object remains still despite external forces acting on it. C) The process of sound waves being absorbed by materials. D) The phenomenon where two objects collide and create a loud noise. Show Answer Correct Answer: A) When something vibrates strong because it is pushed or shaken at just the right amount of frequency. 20. What is the human range of hearing? A) 20-50 Hz. B) 20-50, 000 Hz. C) 20-20, 000 Hz. D) 50-50, 000 Hz. Show Answer Correct Answer: C) 20-20, 000 Hz. 21. The speed of the wave does not depend on the properties of the medium A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 22. What is black body radiation? A) The radiation emitted by a black hole. B) The light absorbed by a black surface. C) The heat generated by a black object. D) Electromagnetic radiation emitted by a perfect black body. Show Answer Correct Answer: D) Electromagnetic radiation emitted by a perfect black body. 23. When you squeeze the coils of a spring together, you cause a ..... A) Compression. B) Refraction. C) Rarefaction. D) Diffraction. Show Answer Correct Answer: A) Compression. 24. In the electromagnetic spectrum, what type of wave has the shortest wavelength? A) Radio Waves. B) Microwaves. C) X-Rays. D) Gamma Rays. Show Answer Correct Answer: D) Gamma Rays. 25. What causes sound waves? A) Light waves. B) Vibrations. C) Heat. D) Gravity. Show Answer Correct Answer: B) Vibrations. ← 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