This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 68 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 68 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What type of wave interaction occurs when waves add up to produce a smaller or zero amplitude? A) Constructive interference. B) Destructive interference. C) Diffraction. D) RefractionTagsDOK Level 2:Skill/Concept. Show Answer Correct Answer: B) Destructive interference. 2. Wavefront represents: A) Wave speed. B) Points in same phase of wave cycle. C) Wave amplitude. D) Wave frequency. Show Answer Correct Answer: B) Points in same phase of wave cycle. 3. What happens to the frequency of a wave if the wavelength increases, assuming the speed remains constant? A) Frequency increases. B) Frequency decreases. C) Frequency remains the same. D) Frequency doubles. Show Answer Correct Answer: B) Frequency decreases. 4. The material through which a wave travels is called the A) Medium. B) Vacuum. C) Stuff. D) Contingent. Show Answer Correct Answer: A) Medium. 5. The medium (or tension) through which a wave travels affects its ..... A) Wavelength. B) Speed. C) Amplitude. D) None of the above. Show Answer Correct Answer: B) Speed. 6. The time taken for one oscillation of a wave is 0.25 s. What is the frequency of the wave? A) 8 Hz. B) 4 s. C) 4 Hz. D) 8 s. Show Answer Correct Answer: C) 4 Hz. 7. Points of maximum amplitude on a standing wave are called A) Nodes. B) Antinodes. C) Points of interference. D) None of the above. Show Answer Correct Answer: B) Antinodes. 8. If momentum is conserved after a collision, then the amount of momentum before the collision is ..... the amount after. A) Greater than. B) Less than. C) Equal to. D) Inverse to. Show Answer Correct Answer: C) Equal to. 9. The units of frequency are ..... A) Metres. B) Seconds. C) Hertz. D) Degrees. Show Answer Correct Answer: C) Hertz. 10. Which type of wave arrives first during an earthquake? A) Primary (p-wave) waves. B) Secondary (s-wave) waves. C) Rayleigh Waves. D) Love Waves. Show Answer Correct Answer: A) Primary (p-wave) waves. 11. When Red and Cyan light are shone in one place the resulting colour is ..... A) Brown. B) Red. C) White. D) Blue. Show Answer Correct Answer: C) White. 12. If a material absorbs all frequencies of light waves EXCEPT green, what color will be perceived by the observer? A) Green. B) White. C) Black. D) Yellow. Show Answer Correct Answer: A) Green. 13. A substance through which a wave can travel is a A) Vibration. B) Longitudinal wave. C) Pitch. D) Medium. Show Answer Correct Answer: D) Medium. 14. The number of waves that pass a point each per second is: A) Frequency. B) Period. C) Longitudinal. D) Transverse wave. Show Answer Correct Answer: A) Frequency. 15. The first harmonic in a closed pipe at one end shows A) A full wavelength. B) Half a wavelength. C) A quarter of a wavelength. D) None of the above. Show Answer Correct Answer: C) A quarter of a wavelength. 16. A guitar string resonates at a fundamental frequency of 300 Hz. Which of the following frequencies can set the string into resonance? A) 30 Hz. B) 100 Hz. C) 400 Hz. D) 500 Hz. E) 600 Hz. Show Answer Correct Answer: E) 600 Hz. 17. Period A) In any periodic motion, the amount of time required for an object to repeat one complete cycle of motion. B) Any motion that repeats in a regular cycle. C) All the above. D) None of the above. Show Answer Correct Answer: A) In any periodic motion, the amount of time required for an object to repeat one complete cycle of motion. 18. Which of the following are measured in Hertz (Hz) A) Amplitude. B) Wavelength. C) Frequency. D) None of the above. Show Answer Correct Answer: C) Frequency. 19. Light of wavelength 575 nm falls on a double-slit and the third order bright fringe is seen at an angle of 6.5$^{o}$. What is the separation between the double slits? A) 5.0 micro-m. B) 10 micro-m. C) 15 micro-m. D) 20 micro-m. Show Answer Correct Answer: C) 15 micro-m. 20. What type of interference causes the trough and crest to decrease A) Constructive interference. B) Reconstructive interference. C) Operational definitions. D) Destructive interference. Show Answer Correct Answer: D) Destructive interference. 21. Seismic waves create earthquakes. What do seismic waves and sound waves have in common? A) They are mechanical waves and move matter. B) They are electromagnetic waves. C) They travel faster than light. D) They do not carry energy. Show Answer Correct Answer: A) They are mechanical waves and move matter. 22. A wave that has the vibration parallel to the direction of the wave is called: A) Longitudinal. B) Transverse. C) All the above. D) None of the above. Show Answer Correct Answer: A) Longitudinal. 23. What do we call the highest point on a transverse wave? A) Crest. B) Trough. C) Amplitude. D) Frequency. Show Answer Correct Answer: A) Crest. 24. What is any motion that repeats itself? A) Variable. B) Cycle. C) Pendulum. D) Circle. Show Answer Correct Answer: B) Cycle. 25. What unit is frequency typically measured in? A) Meters (m). B) Hertz (Hz). C) Newtons (N). D) Watts (W). Show Answer Correct Answer: B) Hertz (Hz). ← 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