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Class 11 Physics (Part Ii) Chapter 17 Waves Quiz 8 (60 MCQs)

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1. A hill separates a TV Trasnmitter from a house. The trasnmitter cannot be seen from the house. However the house has good TV Reception. By which wave effect at the hill, could the TV signal reach the house?
2. Which region of the electromagnetic spectrum is used for sterilising medical equipment?
3. Wave speed is measured in which unit?
4. Which type of waves are produced by a television remote controller
5. On big LED screens which three colours of LEDs are used to make the image?
6. Where does a pendulum have maximum potential energy?
7. The distance traveled by a wave in one period is called?
8. What would happen to the frequency is the wavelength was tripled?
9. The most dense part of a longitudinal wave.
10. These wavelengths correspond to light in the visible section of the Electromagnetic Spectrum400nm, 470nm, 510nm, 650nmWhich wavelength corresponds to violet light?
11. A wave with a wavelength of 12m travels at 245 m/s. Calculate it's frequency.
12. What is the time it takes for one full wavelength called? (Seconds/Wave)
13. Which type of wave is created by simple harmonic motion?
14. If the angle of incidence increases and the indexes of refraction stay the same, what happens to the angle of refraction?
15. Which direction does a compressional wave travel
16. The disturbance is perpendicular (at a right angle) to the direction of wave travel.
17. Olive Udadi accompanies her father to the park for an afternoon of fun. While there, she hops on the swing and begins to swing back and forth once every 4 seconds. The frequency of her swing is:
18. What is the velocity of a wave with a frequency of 550 Hz and a wavelength of .23m?
19. An ultrasound tech is trying to identify an object, but the screen of the machine is broken. Which statement best describes this situation?
20. Frieda the fly flaps her wings back and forth 100 times each second. The frequency of her wings flapping is:
21. Which of the following is the correct relation between the wavelength, $\lambda$ $\upsilon$
22. The number of waves that pass somewhere in a second is:
23. A beam of monochromatic red light passes obliquely from air into water. Which characteristic of the light does not change?
24. If a wave obtains a frequency of 250 Hertz, what is its period?
25. When a wave bends as it passes through at an angle from one medium to another.
26. What kind of waves are transverse waves?
27. You tie a 0.2 kg mass to the end of a 0.34 meter long piece of string to make a pendulum. You pull the pendulum 10 degrees to the side and release it. What will be the period of its oscillation?
28. What type of wave does NOT need matter to travel through?
29. A sound wave has a frequency of 200 Hz. What is the wavelength of the sound wave?
30. The number of complete oscillations a harmonic motion makes each second is the ..... of the wave.
31. When a wave strikes an object and bounces off
32. Constructive interference occurs when two or more waves combine to produce a smaller wave
33. The top of a transverse wave
34. In a standing wave, where are the particles oscillating with the greatest amplitude located?
35. Amplitude relates to
36. A tank contains water. Ripples are produced on the surface of the water. Refraction is observed. What causes the ripples to refract?
37. What does a wave carry from place to place?
38. Period of oscillation?
39. What is the time period of a wave?
40. ..... is the number of waves that past in a given amount of time.
41. If i multiply the frequency of a wave with its wavelength, that would equal
42. Teo sound waves have frequencies of 250 Hz and 300 Hz. The speed of sound is 340 m/s, What is the difference between the wavelenghts of the two waves?
43. Music is an example of harmonic motion.
44. How do waves transfer energy?
45. Which of the following is NOT a benefit of using digital signals to transmit information?
46. Which has a longer wavelength, Radiowaves or ultraviolet waves?
47. A source of sound of frequency 1000 Hz moves away from the stationary observer at a speed of 30 m/s. the speed of sound is 330 m/s. What is the frequency of sounnd heard by the observer
48. A beam of monochromatic light travels through flint glass, crown glass, Lucite, and water. The speed of the light beam is slowest in
49. If a wave is traveling at a certain speed and its frequency is doubled, what happens to is wavelength?
50. A yellow object would appear what colour when viewed through a green filter
51. What kind of light has the shortest wavelength?
52. The lowest part of a wave is called the .....
53. The power of a light bulb is 60W and the wavelength of the light emitted by the bulb is 520nm. What is the number of photons emitted by the bulb each second?
54. Which of the following statements about the energy of light is correct?I The energy of a light wave increases with increasing amplitude. II The energy of a light wave increases with increasing frequency. III The energy of a light wave increases with decreasing wavelength. $_{(VCAA 2020-modified)}$
55. Two waves with phase difference 180$^\circ$ have resultant of amplitude
56. Select the correct order of waves on the EMS from the longest wavelength to the shortest wavelength
57. The angle of incidence is 35.9$^{o}$. Determine the angle of reflection.
58. Regular disturbances that carry energy through matter or space
59. What is the significance of Planck's law in black body radiation?
60. Which of these answers best describes a scientific theory?
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