This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 52 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 52 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... spectrum is used for communication through satellites and mobile phones? A) Infrared. B) X-rays. C) Radio waves. D) Gamma rays. Show Answer Correct Answer: C) Radio waves. 2. It is the region of longitudinal wave where the particles of the medium are farthest apart. A) Rarefaction. B) Compression. C) Trough. D) Crest. Show Answer Correct Answer: A) Rarefaction. 3. What is the name given to the apparent shift in frequency when a source of waves is moving? A) Refraction. B) Diffraction. C) Reflection. D) The Doppler effect. Show Answer Correct Answer: D) The Doppler effect. 4. Electromagnetic waves vary in ..... A) The way they reflect. B) The speed they travel in a vacuum. C) Wavelength and frequency. D) The orientation of their electric and magnetic fields. Show Answer Correct Answer: C) Wavelength and frequency. 5. What is the term for when waves line up oppositely? A) Destructive Interference. B) Constructive Interference. C) Diffraction. D) Reflection. Show Answer Correct Answer: A) Destructive Interference. 6. If amplitude is increased then the wavelength A) Increases. B) Decreases. C) Stays the same. D) None of the above. Show Answer Correct Answer: C) Stays the same. 7. How many nodes are present in the second harmonic of a standing wave? A) 2. B) 4. C) 5. D) 3. Show Answer Correct Answer: D) 3. 8. Give an example of a luminous object. A) Moon. B) Sun. C) Light bulb. D) Star. Show Answer Correct Answer: B) Sun. 9. Is refracting light bending or bouncing? A) Bending. B) Bouncing. C) All the above. D) None of the above. Show Answer Correct Answer: A) Bending. 10. Definition: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. 11. A wave in which the vibration is in the same direction as that in which the wave is traveling; sound waves A) Longitudinal wave. B) Ocean wave. C) Transverse wave. D) Mechanical wave. Show Answer Correct Answer: A) Longitudinal wave. 12. Which EM wave is used in satellite communication because it can pass through the atmosphere with little absorption? A) Infrared waves. B) Radio waves. C) Microwaves. D) Visible light. Show Answer Correct Answer: C) Microwaves. 13. A standing wave is created when two identical waves ..... A) Reflect off one another. B) Are diffracted by the same gap. C) Pass through one other in opposite directions. D) Pass through one other perpendicularly. Show Answer Correct Answer: C) Pass through one other in opposite directions. 14. The lowest part of a transverse wave. A) Wavelength. B) Trough. C) Crest. D) Amplitude. Show Answer Correct Answer: B) Trough. 15. What determines the amplitude of a compressional wave A) Size of wavelength. B) Frequency of the wave. C) Thickness of compression. D) Height of crest. Show Answer Correct Answer: C) Thickness of compression. 16. What is the equation for calculating wave speed? A) V = f-$\lambda$. B) V = f / $\lambda$. C) V = f + $\lambda$. D) V = f x $\lambda$. Show Answer Correct Answer: D) V = f x $\lambda$. 17. Waves that require a medium to travel are known as: A) Mechanical Waves. B) Non-Mechanical Waves. C) Electromagnetic Waves. D) Sine Waves. Show Answer Correct Answer: A) Mechanical Waves. 18. Which of the following is used to calculate the velocity (V) of a wave? A) V = $\lambda$ + f. B) V = $\lambda$ / f. C) V = $\lambda$ * f. D) V = $\lambda$-f. Show Answer Correct Answer: C) V = $\lambda$ * f. 19. Explain the concept of diffraction of waves. A) Diffraction of waves is the absorption of waves by obstacles. B) Diffraction of waves is the bending of waves around obstacles and the spreading of waves as they pass through openings, caused by interference effects. C) Diffraction of waves is the reflection of waves off obstacles. D) Diffraction of waves is the amplification of waves as they pass through obstacles. Show Answer Correct Answer: B) Diffraction of waves is the bending of waves around obstacles and the spreading of waves as they pass through openings, caused by interference effects. 20. A bouncing spring is an example of harmonic motion. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 21. The speed of sound depends on these two things: A) The type of medium and the temperature of the medium. B) Speed of the medium and temperature of the medium. C) Temperature of the medium and sound of the medium. D) None of the above. Show Answer Correct Answer: A) The type of medium and the temperature of the medium. 22. What is the result of diffraction? A) The wave changes color. B) The wave speeds up. C) The wave stops. D) The wave spreads out. Show Answer Correct Answer: D) The wave spreads out. 23. Which type of wave can travel through mass and a vacuum? A) Electromagnetic. B) Mechanical. C) Electromagnetic and Mechanical. D) None of the above. Show Answer Correct Answer: A) Electromagnetic. 24. Which of the following statements are true? A. Real Images are upright B. Real Images are inverted C. Virtual Images are inverted D. Real and virtual images are the same. A) Real Images are upright. B) Real Images are inverted. C) Virtual Images are inverted. D) Real and virtual images are the same. Show Answer Correct Answer: B) Real Images are inverted. 25. The distance between repeating parts of a wave. A) Frequency. B) Wavelength. C) Pitch. D) Amplitude. Show Answer Correct Answer: B) Wavelength. ← 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