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Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 27 (60 MCQs)

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1. The visible part of the electromagnetic spectrum consists of the colors that we see in a rainbow. Different colors correspond to different wavelengths of light. Which color of visible light has the shortest wavelength?
2. Brianna reported a measurement in units of hertz. What property of a wave was she measuring?
3. Define the term 'black body' in the context of radiation.
4. When two waves overlap each other, this behavior is known as .....
5. The number of waves that pass a given point in a certain amount of time
6. If two objects collide and scatter apart, this is called a ..... collision.
7. When wavelength increases, what happens to the frequency?
8. What type of waves move back and forth like a slinky bounce?
9. This type of EM radiation is used to send mobile phone signals & in GPS?
10. Which one has the lowest frequency?
11. Imagine Avery and Hannah are at a science fair demonstrating wave physics. When two waves they created meet and combine to form a wave with a larger amplitude, what is this interaction called?
12. Which object would be the best at reflecting light waves?
13. What is the number of waves per unit time called?
14. What describes the intensity of a wave?
15. What is the refractive index?
16. Two light wave sources with the same frequency and with a constant phase difference are said to be .....
17. If given particles are moving with same velocity, then maximum de-Broglie wavelength for:
18. In the longitudinal waves the molecules of the medium vibrates in a direction ..... the direction of the wave prop
19. If the amplitude of a wave is increased, the frequency of the wave will
20. The Tacoma Narrows Bridge, musical instruments, and crystal stemware are examples of .....
21. When analyzing wave data in different media, if the speed of a wave is 350 m/s and the frequency is 200 Hz, what is the wavelength?
22. What is the principle of superposition in wave mechanics?
23. How fast the wave travels along the medium is the .....
24. Which property of waves determines the loudness of a sound?
25. Which change will increase the diffraction of the wave as it passes through the gap?
26. If the amplitude increases during interference, this is .....
27. What is the angle that needs to be drawn 90$^\circ$ to the surface of the glass block when investigating the refractive index of glass?
28. Which of these has the highest frequency?
29. How does "speed" relate to the terms "frequency" and "wavelength" ?
30. If the time taken to make 100 complete oscillation is 2 seconds then the frequency of vibration is .....
31. What type of wave interaction occurs when waves add up to produce a smaller or zero amplitude?
32. Wavefront represents:
33. The material through which a wave travels is called the
34. The medium (or tension) through which a wave travels affects its .....
35. The time taken for one oscillation of a wave is 0.25 s. What is the frequency of the wave?
36. Points of maximum amplitude on a standing wave are called
37. If momentum is conserved after a collision, then the amount of momentum before the collision is ..... the amount after.
38. The units of frequency are .....
39. When Red and Cyan light are shone in one place the resulting colour is .....
40. If a material absorbs all frequencies of light waves EXCEPT green, what color will be perceived by the observer?
41. A substance through which a wave can travel is a
42. The number of waves that pass a point each per second is:
43. The first harmonic in a closed pipe at one end shows
44. A guitar string resonates at a fundamental frequency of 300 Hz. Which of the following frequencies can set the string into resonance?
45. Which of the following are measured in Hertz (Hz)
46. 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?
47. What type of interference causes the trough and crest to decrease
48. Seismic waves create earthquakes. What do seismic waves and sound waves have in common?
49. A wave that has the vibration parallel to the direction of the wave is called:
50. What do we call the highest point on a transverse wave?
51. What is any motion that repeats itself?
52. What unit is frequency typically measured in?
53. Which of the following is a valid conclusion of the pendulum lab?
54. I)A device to produce water waves and to study their characteristics is known as
55. Fluids only transmit ..... waves.
56. What does the term "frequency" of a wave refer to?
57. The range of human hearing is between .....
58. Which of the following statements is true? A. Lydia's image is upright. B. Lydia's image is inverted. C. Lydia's image is the same size as the student. D. Lydia's image is magnified. E. Lydia's image is smaller than the student.
59. As you increase the amplitude of a wave, you also increase the
60. A surface wave is a wave that has characteristics of .....
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