Reflection
If you can see the light reflected, then it has hit your eyes, and your brain is processing it as the sense of sight, if you cannot see it, then it has reflected somewhere other than your eyes-IE; back into space, or it is a wavelength of light that the human eye cannot detect.
The path of reflected light can be predicted using the law of reflection, which states that the angle of incidence is equal to the angle of reflection. This means that the angle at which light strikes a smooth surface will be reflected at an equal angle on the opposite side of the normal line to the surface.
Light waves travel in straight lines unless they encounter a medium density change or are reflected or refracted by a surface. This results in bending or scattering of the light waves along their path.
When light passes through a flat piece of glass, like a window, the light is refracted at both surfaces, but the exiting ray of light is parallel to the entering ray and hence the light's path is not really changed.
When your eyes can detect images, light from a light source(s) is being reflected from the objects you see directly to your retina. For example, you are in a closed room with one overhead light fixture. The light from the light bulb is being filtered and scattered to light up some surfaces in the room. Light travels in a straight line. The shadow below a desk is where there is no direct light (no direct path to the light source). However, light scattered off the wall or chair will still reach below the desk, where you can still see a faded image. When you can see an image, bright or faded, it means that some light has reflected off that surface to reach your eyes. A bright image is seen when more light reaches that surface and reflects to your eyes than a fuzzy image. =========================
Normally light travels in a straight line. However, it has been demonstrated that gravity can bend the path of light.
A light ray is a straight line used to represent the path along which light travels. It is an abstraction used to analyze the behavior of light in various optical systems. In optical terminology, light rays are used to trace the path of light and determine how it interacts with surfaces and lenses.
It is reflected out at exactly the same angle at which it came in, according to the Law of Reflection.
It is reflected back parallel to the principal axis. (apex)
When light is reflected, it bounces off a surface without being absorbed, redirecting its path. The angle of incidence (incoming light) is equal to the angle of reflection (outgoing light) in accordance with the law of reflection. This is how we see objects by the light that reflects off them into our eyes.
Light travels in a straight line until it encounters a medium that causes it to change direction, such as reflection or refraction. It moves at a speed of about 186,282 miles per second in a vacuum. The path of light can be altered by transparent or reflective surfaces it encounters.
An image that has a path of light rays is a rainbow. Rainbows are formed when sunlight is refracted, reflected, and dispersed in water droplets, creating a spectrum of colors in the sky. The different colors are separated due to their different wavelengths, resulting in a beautiful arc of light.