![]() Is equal to the angle of impact (with the target). The angle of reflection and angle of refraction. This angle is calculated as the angle of contact (with the cushion) The angle of incidence at which light is first totally internally reflected is known as the critical angle. Which enables the player to hit the target ball. 199) the cue ball is bounced off the cushion at an angle Pool players use the law of reflection to improve their game. When light strikes the reflector the light bounces off the tiny surfaces and bounces Of tiny, flat reflecting surfaces arranged at 90o angles to one another. Reflectors help to make bicycles and cars visible at night. Therefore your eye sees the letters in black ink. The ink on the paper absorbs the light and no light from the ink reaches your eye. Light hits the white paper and reflects in all directions (some of it reaching your eye). Rough surfaces appear to reflect light randomly,īut this seemingly scattered light creates the image of the print on the page. The object - but they can reflect light from a large area, making themĬoncave mirrors form an image that appears to be closer than it actually is andĬan be useful because it can also reflect light from a large area (only true for flat mirrors)Ĭonvex mirrors form images that appear much smaller and farther away than the The same distance from the mirror as the object. Because yourīrain knows that light travels in a straight line, it interprets the pattern of light that reaches your eye asĪn image of an object you are looking at.įigure 3.19 explains why an image in a mirror is the same size as the object and appears to be The rays that reach your eye appear to be coming from a point behind the mirror. The incident ray, the normal line and the reflected ray lie in the same plane (an imaginary flat surface)Īn image is formed in a mirror because light reflects off all points on the object being observed The angle of incidence equals the angle of reflection The angle between the reflected ray and the normal line is called The angle between the incident ray and the normal line ![]() A line that is perpendicular ( 90 o with the surface) to the plane mirror is called the normal line. Ray and the light that bounces off the surface is called a reflected ray. Light coming from a light source is called an incident If it hits a smooth surface, the light reflects at an opposite angle to the angle it hits. If it hits a rough surface, the light is scattered. the angle of incidence is equal to the angle of reflection. How it bounces off the surface depends on the Law of Reflection and Opposite angles are the angles that are opposite each other when two lines intersect. Reflection is the process in which light strikes a surface and bounces back off that surface.
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