This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 26 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 26 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the formula for calculating the wave PERIOD? A) V=d/t. B) F=N/t. C) V=f * Lambda. D) T=1/f. Show Answer Correct Answer: D) T=1/f. 2. Which object would be best to model a longitudinal wave? A) Rope. B) Bridge. C) Slinky. D) Water bottles. Show Answer Correct Answer: C) Slinky. 3. What does the amplitude of a sound wave tell you? A) How high or low pitched the sound is. B) The volume of the sound. C) When you get amped up. D) None of the above. Show Answer Correct Answer: B) The volume of the sound. 4. The trough of a wave is: A) The highest point of the wave. B) The lowest point of the wave. C) The distance between two successive crests. D) The time of one wavelength. Show Answer Correct Answer: B) The lowest point of the wave. 5. What kind of wave can travel through empty space? A) Sound. B) Electromagnetic. C) Ocean. D) Mechanical. Show Answer Correct Answer: B) Electromagnetic. 6. How is "speed" related to waves, and what units are commonly used to express wave speed? A) Speed is independent of waves. B) Speed = Wavelength/Frequency; m/s. C) Speed = Amplitude x Frequency; Hz. D) Speed = Frequency x Wavelength; m/s. Show Answer Correct Answer: D) Speed = Frequency x Wavelength; m/s. 7. Which type of wave is characterized by compression and expansion? A) Longitudinal wave. B) Transverse wave. C) Continuous wave. D) Pulse wave. Show Answer Correct Answer: A) Longitudinal wave. 8. What is the energy in electron volts of a photon of ultra violet light of frequency 7.9 x 10$^{14}$Hz? A) 3.27eV. B) 1.48 eV. C) 37.9 x 10$^{4}$ eV. D) 8.38 x 10$^{-38}$eV. Show Answer Correct Answer: A) 3.27eV. 9. What is the frequency of a wave that has a period of $2.11\min$ A) $7.9\times10^{-3}Hz$. B) $0.474Hz$. C) $127Hz$. D) $2.70Hz$. Show Answer Correct Answer: A) $7.9\times10^{-3}Hz$. 10. For destructive interference, the path difference is: A) Odd number of half wavelengths. B) Even number of half wavelengths. C) Whole number of wavelengths. D) Even whole number of wavelengths. Show Answer Correct Answer: A) Odd number of half wavelengths. 11. The period of a harmonic oscillator is A) The time the oscillator takes to complete one cycle. B) One cycle of motion. C) The maximum displacement of the oscillator. D) The number of cycles the oscillator makes per second. Show Answer Correct Answer: A) The time the oscillator takes to complete one cycle. 12. In a Young's double slit experiment, green light isincident on the two slits. The interference pattern isobserved on a screen. Which one of the followingchanges would cause the fringes to be more closelyspaced? A) Reduce the slit separation distance. B) Use red light instead of green light. C) Use blue light instead of green light. D) Move the screen farther away from the slits. Show Answer Correct Answer: C) Use blue light instead of green light. 13. Damping is A) The slowing down of periodic motion due to friction. B) Increasing the resonance by supplying a mechanical force. C) A shift in the equilibrium position due to air resistance. D) An increase in the energy of a vibrating system. Show Answer Correct Answer: A) The slowing down of periodic motion due to friction. 14. What is resonance in the context of standing waves? A) Resonance occurs when the amplitude of a standing wave decreases. B) Resonance in standing waves is when the natural frequency of an object matches the frequency of an external force, leading to a significant increase in amplitude. C) Resonance is unrelated to the frequency of the external force. D) Resonance is only observed in transverse waves. Show Answer Correct Answer: B) Resonance in standing waves is when the natural frequency of an object matches the frequency of an external force, leading to a significant increase in amplitude. 15. A wave on a string has a frequency of 5 Hz and a wavelength of 2 meters. What is the speed of the wave? A) 10 m/s. B) 2.5 m/s. C) 5 m/s. D) 20 m/s. Show Answer Correct Answer: A) 10 m/s. 16. In a demonstration, a vibrating tuning fork causes a nearby second tuning fork to begin to vibrate with the same frequency. Which wave phenomenon is illustrated by this demonstration? A) Resonance. B) Interference. C) Nodes. D) Doppler effect. Show Answer Correct Answer: A) Resonance. 17. Which of the following is an example of a transverse wave? A) Sound wave. B) Light wave. C) Water wave. D) All of the above. Show Answer Correct Answer: B) Light wave. 18. The bending of a wave around a barrier is ..... A) Comression. B) Waves. C) Diffraction. D) Sonar. Show Answer Correct Answer: C) Diffraction. 19. What occurs when a wave's amplitude is tripled? A) Energy triples. B) Energy increases nine times. C) Energy doubles. D) Energy increases six times. Show Answer Correct Answer: B) Energy increases nine times. 20. Where does a pendulum have maximum kinetic energy? A) Equilibrium. B) Between equilibrium and highest amplitude moving down. C) Highest amplitude on either side of equilibrium. D) Between equilibrium and highest amplitude moving up. Show Answer Correct Answer: A) Equilibrium. 21. ..... is made when something vibrates A) Light. B) Sound. C) Drum. D) Pounding. Show Answer Correct Answer: B) Sound. 22. How does gamma ray affect the body in excessive quantities? A) Skin burns. B) Damage to surface cells and blindness. C) Internal heating of body tissue. D) Cancer, mutation. Show Answer Correct Answer: D) Cancer, mutation. 23. The distance between two consecutive crests or troughs is the A) Frequency. B) Amplitude. C) Wavelength. D) Period. Show Answer Correct Answer: C) Wavelength. 24. Which of the following best describes a standing wave? A) A wave that travels through a medium without reflection. B) A wave that is confined to a space and appears to be stationary. C) A wave that loses energy as it travels. D) A wave that changes frequency over time. Show Answer Correct Answer: B) A wave that is confined to a space and appears to be stationary. 25. What can electromagnetic waves travel through? A) Mediums. B) Empty space. C) Solely solids. D) Both mediums and empty space. Show Answer Correct Answer: D) Both mediums and empty space. ← 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