This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 11 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A monochromatic laser shines at $422nm$ A) $7.11\times10^{14}Hz$. B) $711000Hz$. C) $0.813Hz$. D) $1.45\times10^{-4}Hz$. Show Answer Correct Answer: A) $7.11\times10^{14}Hz$. 2. Which direction does a Longitudinal wave travel A) Parallel. B) Perpendicular. C) All the above. D) None of the above. Show Answer Correct Answer: A) Parallel. 3. Distance from one part of the wave to the exact same point on the next wave. A) Wavelength. B) Amplitude. C) Crest. D) Trough. Show Answer Correct Answer: A) Wavelength. 4. What is the purpose of the focal point in a lens? A) To scatter light. B) To focus light rays to a single point. C) To magnify objects. D) To absorb light. Show Answer Correct Answer: B) To focus light rays to a single point. 5. For a sound wave to produce an echo, it must A) Diffract. B) Have long wavelengths. C) Reflect off surfaces. D) Have a high pitch. Show Answer Correct Answer: C) Reflect off surfaces. 6. The type of wave that can travel through either matter or empty space: A) Mechanical Waves. B) Electromagnetic Waves. C) All the above. D) None of the above. Show Answer Correct Answer: B) Electromagnetic Waves. 7. Select the use for Visible Light A) Electric Heaters. B) Satellite communications. C) Communications through optical fibres. D) Medical Treatments/imaging. Show Answer Correct Answer: C) Communications through optical fibres. 8. Which of the following is NOT a property of waves? A) Frequency. B) Amplitude. C) Wavelength. D) Time. Show Answer Correct Answer: D) Time. 9. How long does it take for light from the sun to reach earth if the sun is 1.5 x 10$^{11}$ m away? A) 5 minutes. B) 8 minutes, 20 seconds. C) 0.1 seconds. D) 4 seconds. Show Answer Correct Answer: B) 8 minutes, 20 seconds. 10. Which type of wave has a disturbance parallel to its direction of propagation? A) Periodic wave. B) Pulse wave. C) Longitudinal wave. D) Transverse wave. Show Answer Correct Answer: C) Longitudinal wave. 11. Which type of electromagnetic wave is most commonly demonstrated to show polarisation in school experiments? A) X-rays. B) Light waves. C) Microwaves. D) Radio waves. Show Answer Correct Answer: B) Light waves. 12. What safety precaution should be taken when working with the ray box? A) Avoid touching any metal surfaces during and just after use. B) Handle the ray box with wet hands. C) Leave the ray box on when not in use. D) Look directly at the ray box light. Show Answer Correct Answer: A) Avoid touching any metal surfaces during and just after use. 13. What do we call a material through which waves can travel? It can be a solid, liquid, or gas. A) Medium. B) Vacuum. C) Vibrations. D) Amplitude. Show Answer Correct Answer: A) Medium. 14. What is the measurement unit for frequency: A) M/s. B) Watts. C) Metres. D) Hertz. Show Answer Correct Answer: D) Hertz. 15. What is it called when light waves enter a substance? A) Refraction. B) Reflection. C) Energy. D) Absorption. Show Answer Correct Answer: D) Absorption. 16. When a wave strikes and object and bounces off. (example echo) A) Medium. B) Refraction. C) Reflection. D) Interference. Show Answer Correct Answer: C) Reflection. 17. If the frequency gets higher, the wavelength gets A) Longer. B) Shorter. C) All the above. D) None of the above. Show Answer Correct Answer: B) Shorter. 18. What is the distance between one part of a wave and the nearest point just like it on the next wave? A) Wavelength. B) Frequency. C) Rarefaction. D) Period. Show Answer Correct Answer: A) Wavelength. 19. An observer counts 4 complete water waves passing by the end of a dock every 10. seconds. What is the frequency of the waves? A) 0.40 Hz. B) 2.5 Hz. C) 40. Hz. D) 4.0 Hz. Show Answer Correct Answer: A) 0.40 Hz. 20. The motion of a metronome is an example of simple ..... motion. A) Waveform. B) Lyric. C) Harmonic. D) Geometric. Show Answer Correct Answer: C) Harmonic. 21. The distance from any point on a wave to an identical point on the next wave A) Frequency. B) Wavelength. C) Wave speed. D) Amplitude. Show Answer Correct Answer: B) Wavelength. 22. Explain how standing waves can be created in a string instrument. A) Standing waves are created by plucking the string once. B) Standing waves are created in a string instrument when the string vibrates at specific frequencies, leading to interference between incoming and reflected waves. C) Standing waves are formed when the string is heated to a high temperature. D) Standing waves occur only when the string is not fixed at both ends. Show Answer Correct Answer: B) Standing waves are created in a string instrument when the string vibrates at specific frequencies, leading to interference between incoming and reflected waves. 23. What type of matter can waves travel through? A) Solid. B) Liquid. C) Gas. D) All of the Above. Show Answer Correct Answer: D) All of the Above. 24. What is a wave in physics? A) A wave in physics is a type of particle. B) A wave in physics is a disturbance that transfers energy through matter or space without transferring mass. C) A wave in physics is a form of solid matter. D) A wave in physics is a stationary object. Show Answer Correct Answer: B) A wave in physics is a disturbance that transfers energy through matter or space without transferring mass. 25. A bird looks at a mirror and sees a bug. The bird is looking at the mirror with an angle of incidence of 15.3$^\circ$. The bird smashes the mirror thinking the bug is right there. At what angle was the bug to the mirror's normal? A) 15.3$^\circ$. B) 90.0$^\circ$. C) 74.7$^\circ$. D) 164.7$^\circ$. Show Answer Correct Answer: A) 15.3$^\circ$. ← 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