The concept of "change in velocity of light with change in optical density" refers to the phenomenon in which the speed of light changes as it passes through different materials with varying optical densities. This change in velocity is a result of the interaction between light and the particles or molecules in the material.
The change in optical density of a material causes the speed of light to decrease. This is because the particles or molecules in the material slow down the propagation of light, resulting in a decrease in its velocity.
The change in velocity of light is directly proportional to the refractive index of a material. This means that as the refractive index of a material increases, the change in velocity of light also increases.
Yes, the change in velocity of light can be observed in everyday materials such as water, glass, and air. These materials have different optical densities, which cause the speed of light to change as it passes through them.
The change in velocity of light can cause objects to appear distorted or bent when viewed through different materials. This is because the change in velocity of light results in a change in the direction of light as it passes through the material, causing the object to appear shifted or distorted.