class boundary

Heterogenous nature - Colloidal sols are biphasic in nature. It consists of the dispersed phase and the dispersion medium. In the colloidal solution, each particle is contained within its own surface boundary and therefore has a separate existence from the dispersion mediu..

Biomembranes form physical boundaries between organelles and cytoplasm as well as cell and its surroundings medium. Materials are passed across the biomembrane by various processes. The membrane allows only selected particles based on their size, shape, texture etc, to move in and out. He..

Let us now see what happens when a ray of light is incident on the boundary separating the two mediums having different densities. A part of the light gets reflected and rest of the light changes its direction as it enters the second mediu..

Question: Define reflection of light. Answer: The phenomenon by which a ray of light changes the direction of propagation when it strikes a boundary between different media through which it cannot pass is described as the reflection of ligh..

Question 1 - Question: Define reflection of light. Answer: The phenomenon by which a ray of light changes the direction of propagation when it strikes a boundary between different media through which it cannot pass is described as the reflection of ligh..

Refraction of Light - Let us now see what happens when a ray of light is incident on the boundary separating the two mediums having different densities. A part of the light gets reflected and rest of the light changes its direction as it enters the second mediu..

Reflection of Light - When a ray of light hits a surface, it bounces off or reflects and then reaches our eyes. This phenomenon by which a ray of light changes the direction of propagation when it strikes a boundary between different media through which it cannot pass is described as the ..

Impure Substances - Mixtures Impure substances are commonly called mixtures. A mixture is a material containing two or more elements or compounds that are in close contact and are mixed in any proportion. The constituents of mixtures exhibit their individual properties. These constituents can b..

Air pollution can cause number of health hazards to human beings, animals, birds, in addition to causing number of deleterious effects on earth's atmosphere as well as vegetation and even on some buildings. It is a global malady causing innumerable irreversible changes to our planet. The effe..

Transport Across Membranes - Biomembranes form physical boundaries between organelles and cytoplasm as well as cell and its surroundings medium. Materials are passed across the biomembrane by various processes. The membrane allows only selected particles based on their size, shape, textur..