This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 50 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 50 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. True or False:Mechanical waves need a medium in order to propagate. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 2. What is the substance or material through which a waves moves? A) Medium. B) Material. C) Wave substance. D) Period. Show Answer Correct Answer: A) Medium. 3. What is redshift? A) Wavelengths that are being expunged because of the uppermost ionosphere, and therefore making the sky glow with red. B) Wavelengths being stretched so the spectrum of light is shifted towards red, and proof of the Big Bang. C) Wavelengths being compressed so the spectrum of light is shifted towards of red. D) Red being stretched so it makes waves. Show Answer Correct Answer: B) Wavelengths being stretched so the spectrum of light is shifted towards red, and proof of the Big Bang. 4. Mechanical waves usually travels fastest as the temperature of the medium: A) Increases. B) Decreases. C) Stays the same. D) None of the above. Show Answer Correct Answer: A) Increases. 5. Distance from the top of the wave to the middle A) Amplitude. B) Wavelength. C) Frequency. D) None of the above. Show Answer Correct Answer: A) Amplitude. 6. The highest part of a transverse wave is A) The crest. B) The trough. C) The wave point. D) The hotel transylvania. Show Answer Correct Answer: A) The crest. 7. Which is the correct order of the colours of light in the visible spectrum from longest to shortest wavelength A) Violet, Indigo, Blue, Green, Yellow, Orange, Red. B) Violet, Blue, Green Yellow, Orange, Pink, Red. C) Red, Yellow, Orange, Green, Blue, Indigo, Violet. D) Red, Orange, Yellow, Green, Blue, Indigo, Violet. Show Answer Correct Answer: D) Red, Orange, Yellow, Green, Blue, Indigo, Violet. 8. When blue and red light are shone in one place the resulting colour is A) Black. B) White. C) Pink. D) Magenta. Show Answer Correct Answer: D) Magenta. 9. Which type of wave is sound? A) Transverse wave. B) Electromagnetic wave. C) Longitudinal wave. D) Surface wave. Show Answer Correct Answer: C) Longitudinal wave. 10. Characteristics of Electromagnetic Wave ared A) Electromagnetic waves are transverse. B) Accelerated charges produce em waves. C) EM waves do not require a mediumtotravel. D) D. All of these. Show Answer Correct Answer: D) D. All of these. 11. High frequency A) If you increase frequency the pitch also increases. B) If you decrease frequency the pitch also increases. C) Frequency has no effect on pitch. D) High frequency results in lower pitch. Show Answer Correct Answer: A) If you increase frequency the pitch also increases. 12. Which region of the electromagnetic spectrum has the longest wavelength? A) Infrared. B) Gamma rays. C) Radio waves. D) Ultraviolet. Show Answer Correct Answer: C) Radio waves. 13. Explain the concept of damping in waves. A) Damping is the amplification of a wave caused by external forces. B) Damping increases the frequency of a wave as it travels through a medium. C) Damping refers to the reflection of waves at a boundary between two media. D) Damping is the reduction in amplitude of a wave due to energy loss as it propagates through a medium. Show Answer Correct Answer: D) Damping is the reduction in amplitude of a wave due to energy loss as it propagates through a medium. 14. A stretched string is observed to have four equal segments in a standing wave driven at a frequency of 480 Hz. What driving frequency will set up a standing wave with five equal segments? A) 600 Hz. B) 360 Hz. C) 240 Hz. D) None of the above. Show Answer Correct Answer: A) 600 Hz. 15. In magenta light a red T-shirt and Blue jeans would look ..... A) T-Shirt-redJeans-blue. B) T-Shirt-redJeans-black. C) T-Shirt-blackJeans-blue. D) T-shirt-blackJeans-black. Show Answer Correct Answer: A) T-Shirt-redJeans-blue. 16. A simple harmonic oscillator takes 4.8 s to undergo five complete vibrations. What is the period of the wave? A) 4.8 s. B) .96 s. C) 9.8 s. D) None of the above. Show Answer Correct Answer: B) .96 s. 17. The highest point on a transverse wave is the A) Compression. B) Crest. C) Rest position. D) Trough. Show Answer Correct Answer: B) Crest. 18. A passing boat causes a floating object on a lake to bob up and down 18 times in 12s. The wavelength of the wave created by the boat is 48 cm.What is the velocity of these water waves? A) 32cm/s. B) 72cm/s. C) 576cm/s. D) 864cm/s. Show Answer Correct Answer: B) 72cm/s. 19. A mechanical wave in which the disturbance is in the same direction, or parallel to, the direction of wave motion A) Transverse wave. B) Surface wave. C) Longitudinal wave. D) Vertical wave. Show Answer Correct Answer: C) Longitudinal wave. 20. A straw appears bent in a glass of water, entering a new medium. Which phenomenon is happening? A) Constructive interference. B) Refraction. C) Reflection. D) Diffraction. Show Answer Correct Answer: B) Refraction. 21. Which type of waves are used by bats for echolocation? A) Infrasound. B) Ultrasound. C) Radio waves. D) Microwaves. Show Answer Correct Answer: B) Ultrasound. 22. Which terms best describe light waves traveling from the Sun to Earth? A) Invisible. B) Mechanical. C) Electromagnetic. D) Longitudinal. Show Answer Correct Answer: C) Electromagnetic. 23. An example of a longitudinal wave is a ..... A) Water wave. B) Stadium wave. C) Sound wave. D) Rope wave. Show Answer Correct Answer: C) Sound wave. 24. What is the distance from wave peak to wave peak called? A) Amplitude. B) Wavelength. C) Longitudinal wave. D) Volume. Show Answer Correct Answer: B) Wavelength. 25. An intruder alarm sensor detects that a person is warmer than his surrounding. Which type of electromagnetic wave does the sensor detects? A) Infared. B) Radio. C) Ultraviolet. D) Visible light. Show Answer Correct Answer: A) Infared. ← 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