CSULB PHYS 100B (in progress) question well answered 2024/2025

CSULB PHYS 100B (in progress)rays are? - correct answer perpendicular to wave fronts wave fronts - correct answer surfaces of constant of equal phase rays - correct answer lines indicating the direction of propagation of the wave plain waves - correct answer straight curved waves - correct answer start at a point and expand outwards when do wave distances become less and less curved? - correct answer at large distances from the source rays for plain waves - correct answer form a set of parallel lines what is the wavelength? - correct answer distance between successive wave fronts Law of reflection - correct answer The incident ray, the reflected ray, and the normal to the surface all lie in the same plane, and the angle of incidence equals the angle of reflection. the angle of incidence and angle of reflection are? - correct answer equal specular reflection - correct answer reflected rays are parallel to each other diffused reflection - correct answer incidence rays are parallel but rays bounce off in any direction normal (line) - correct answer perpendicular to surface at point of incidence mirror image has how many properties? - correct answer 3 flat Mirror image property 2 - correct answer mirror image is same size as object flat Mirror image property 1 - correct answer image is upright flat Mirror image property 3 - correct answer image is as far behind the mirror as you are in front of it. real image - correct answer is one in which light actually passes through the image point virtual image - correct answer one in which the light does not pass through the image point (light appears to diverge from a point) What is the minimum mirror height necessary for her to see her full image? - correct answer mirror equal to one-half her height A person is sitting in front of two mirrors that intersect at a right angle. The person sees three images of herself. Why are there three, rather than two, images - correct answer The third image arises when an incident ray of light is reflected twice, once from each mirror, before entering her eyes. What type of image does an observer see when the light rays entering his/her eye do not actually emanate from the image? - correct answer virtual concave mirror - correct answer inside surface of spherical mirror is polished convex mirror - correct answer outside surface of spherical mirror is polished