61. It is defined as the separation of white light into different colors when the light is passed through the prism. . Refraction . Magnetization . Dispersion . Optics ECU!\" 62 . Wave optics is the branch of optics that studies the diffraction, interference, polarization, and other phenomena for which the ray ap- proximation of geometric optics is valid. a. True b. False 63. lbn al-Haitham is called as the father of optics and de- scriber of vision theory. a. True b. False 64. Which of the following is not a type of wavefronts? a. Spherical wavefront b. Cylindrical wavefront c. Plane wavefronts d. rectangular wavefronts 65. Which of the following is not included in the group? a. Interference b. Refraction c. Diffraction d. Polarization 66. The refraction phenomenon is applied in the case of lenses (Convex and concave) for the purpose of forming an image of the object. a. True b. False 67. What is the distance from crest to crest (or trough to trough); expressed in meters? a. Amplitude b. Vibration c. Optics d. Wavelength 68. The distance of crest (or trough) from the midpoint of the wave. a. Amplitude b. Vibration c. Optics d. Wavelength 69. Reflection does not change the speed or frequency of the wave, But the wave can be flipped upside down. a. True b. False 70. The number of waves that passed a fixed point per second a. Frequency b. Amplitude c. Wavelength d. Refraction 71. What is a crowded area causing a high pressure region a. Tension b. Compression c. Refraction (1. Reflection 72. In longitudinal waves, Particles move perpendicular to the motion of the wave a. True b. False 73. Which of the following is not a mode of heat transfer? a. conduction b. insulation c. convection d. radiation 74.Which of the following is not included in the group? a. Interference b. Refraction c. Diffraction d. Polarization 75. The refraction phenomenon is applied in the case of lenses (Convex and concave) for the purpose of forming an image of the object. a. True b. False Eml ml {In-:umenl