When a ray of light passes through different materials, it changes direction because of a phenomenon called refraction. This is due to the change in speed of light as it moves from one medium to another.
The density of a material plays a crucial role in determining the amount of refraction that occurs when a ray passes through it. Materials with higher density will cause a greater change in direction, while materials with lower density will cause a smaller change in direction.
Yes, the angle of incidence, which is the angle at which the ray enters the material, can affect the amount of refraction. The greater the angle of incidence, the greater the change in direction of the ray.
Yes, the wavelength of light can also affect the amount of refraction that occurs. Different wavelengths of light will refract at different angles, which is why we see different colors when light passes through a prism.
The speed of light changes when it passes through different materials because of the varying density and composition of the materials. Light travels at different speeds in different mediums, causing it to change direction as it passes through them.