This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part Ii) Chapter 17 Waves – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Sound waves are ..... waves A) Transverse. B) High. C) Longitudinal. D) Low. Show Answer Correct Answer: C) Longitudinal. 2. True or False:When placed in water, a ball moves from one place to another. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 3. What part of a longitudinal wave is "spread apart" A) Compression. B) Rarefaction. C) Amplitude. D) Frequency. Show Answer Correct Answer: B) Rarefaction. 4. Which of the following will decrease the spacing of Young's double slit fringes A) Increasing the frequency of the waves. B) Moving the screen further away. C) Decreasing the distance between the slits. D) Using narrower slits. Show Answer Correct Answer: A) Increasing the frequency of the waves. 5. The visible part of the electromagnetic spectrum consists of the colors we see in a rainbow. Which color of visible light has the longest wavelength? A) Blue. B) Green. C) Red. D) Violet. Show Answer Correct Answer: C) Red. 6. ..... waves NEED a medium to travel. A) Seismic. B) Light. C) Mechanical. D) None of the above. Show Answer Correct Answer: C) Mechanical. 7. What type of waves move up and down or side to side like a rope? A) Transverse waves. B) Longitudinal waves. C) Surface waves. D) Reflecting waves. Show Answer Correct Answer: A) Transverse waves. 8. What is the principle of superposition in wave theory? A) The total displacement is the sum of individual displacements. B) Waves can only travel in one direction. C) Waves cannot interfere with each other. D) The speed of a wave is constant. Show Answer Correct Answer: A) The total displacement is the sum of individual displacements. 9. A ..... is a repeating disturbance that transfers energy through matter or space. A) Medium. B) Wavelength. C) Wave. D) Frequency. Show Answer Correct Answer: C) Wave. 10. The first harmonic has A) 1 antinode. B) 1 node. C) 2 antinodes. D) No nodes. Show Answer Correct Answer: A) 1 antinode. 11. 2 points on a progressive wave are 1/3 of a wavelength apart. The distance between the two points is 2cm. If the speed of the wave is 10 ms$^{-1}$ what is the frequency of the wave? A) 5Hz. B) 20Hz. C) 167Hz. D) 1500Hz. Show Answer Correct Answer: C) 167Hz. 12. This type of EM radiation is not visible to human eyes and is given off in the form of heat ..... A) Infrared. B) UV. C) Visible. D) Micro. Show Answer Correct Answer: A) Infrared. 13. What is a standing wave and how is it formed? A) A standing wave is a wave that travels in one direction. B) A standing wave is a type of sound wave that cannot be produced in a vacuum. C) A standing wave is formed by a single wave reflecting off a barrier. D) A standing wave is a wave that remains in a constant position, formed by the interference of two waves traveling in opposite directions. Show Answer Correct Answer: D) A standing wave is a wave that remains in a constant position, formed by the interference of two waves traveling in opposite directions. 14. The highest point of a wave is called the A) Trough. B) Crest. C) Amplitude. D) Wavelength. Show Answer Correct Answer: B) Crest. 15. What is "diffraction" in relation to waves? A) The compression of a wave. B) The expansion of a wave. C) The bending of a wave around a barrier. D) The reflection of a wave. Show Answer Correct Answer: C) The bending of a wave around a barrier. 16. An elastic rope is stretched out and loosely attached to a wall such that its end is free to move. An upward-displaced pulse is introduced into the rope. The pulse travels through the rope, reaches the boundary with the wall and reflects. The reflected pulse will be ..... A) Upright (displaced upwards). B) Inverted (displaced downwards). C) Either inverted or upright, depending upon its amplitude. D) None of the above. Show Answer Correct Answer: A) Upright (displaced upwards). 17. The number of cycles per second is called ..... A) Amplitude. B) Frequency. C) Wavelength. D) Oscillation. Show Answer Correct Answer: B) Frequency. 18. What is the low point in a transverse wave called? A) Peak. B) Wavelength. C) Trough. D) Rarefaction. Show Answer Correct Answer: C) Trough. 19. What is the range of human hearing in Hertz? A) 50 Hz to 25, 000 Hz. B) 5 Hz to 30, 000 Hz. C) 20 Hz to 20, 000 Hz. D) 10 Hz to 15, 000 Hz. Show Answer Correct Answer: C) 20 Hz to 20, 000 Hz. 20. Maurice is wearing a yellow shirt. What behavior is causing our eye to see the yellow waves? A) Absorption. B) Transmission. C) Reflection. D) Refraction. Show Answer Correct Answer: C) Reflection. 21. 20 waves pass a point in 5 s. How is the frequency of these waves? A) 100 Hz. B) 20 Hz. C) 5 Hz. D) 4 Hz. Show Answer Correct Answer: D) 4 Hz. 22. What happens to white light when it passes through a red filter A) It all turns red. B) All colours are absorbed and red is reflected. C) Most colours are absorbed and red is transmitted. D) Most colours are absorbed and red is reflected. Show Answer Correct Answer: C) Most colours are absorbed and red is transmitted. 23. Which type of wave requires a medium to travel through? A) Electromagnetic waves. B) Transverse waves. C) Mechanical waves. D) Longitudinal waves. Show Answer Correct Answer: C) Mechanical waves. 24. The time it takes for a wave to cycle from one peak to the next is called the A) Frequency. B) Hertz. C) Phase. D) Period. Show Answer Correct Answer: D) Period. 25. If humans cannot see ultraviolet waves, how can ultraviolet light be used to gather evidence of a crime? A) Ultraviolet light detects the presence of radioactive substances. B) Ultraviolet light shows cold areas as blue and warm areas as red. C) Ultraviolet light causes substances to fluoresce and give off visible light. D) Ultraviolet light transmits information to AM and FM radio receivers. Show Answer Correct Answer: C) Ultraviolet light causes substances to fluoresce and give off visible light. ← 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