What do you mean by Total Internal Reflection? The inside surface of water can act like a perfect mirror as shown in Figure. This happens when the light rays strike the surface of the water in such a way that it reflects back into the water. The light rays are said to be reflected internally. This phenomenon is known as total internal reflection. It occurs only … [Read more...] about What do you mean by Total Internal Reflection?
Numerical Methods In Lens (A) Lens Formula Definition: The equation relating the object distance (u), the image distance (v) and the focal length (f) of the lens is called the lens formula. Assumptions made: The lens is thin. The lens has a small aperture. The object lies close to principal axis. The incident rays make small angles with the lens surface … [Read more...] about Lens Formula & Magnification – Lens Power
Refraction Of Light Through A Glass Slab Refraction through a rectangular glass slab and principle of reversibility of light: Consider a rectangular glass slab, as shown in figure. A ray AE is incident on the face PQ at an angle of incidence i. On entering the glass slab, it bends towards normal and travels along EF at an angle of refraction r. The refracted ray EF is … [Read more...] about Explain Refraction Of Light Through A Glass Slab
What is Refraction of Light When a spoon is immersed into a glass of water, the spoon appears bent or broken as shown in Figure (a). When a part of the word PHYSICS is covered with a glass slab as shown in Figure (b), the covered letters appear displaced. The two situations described are perceptions due to the change of the direction of a light ray when it leaves the … [Read more...] about What is Refraction of Light
What is Nuclear Energy? Nuclear Energy: In alpha and beta decay, energy is released in the form of kinetic energy of the daughter nuclide and radioactive emission. This is known as nuclear energy. Nuclear energy comes from the loss of mass in a nuclear reaction. Two nuclear reactions that release a large amount of energy are nuclear fission and nuclear … [Read more...] about What is Nuclear Energy?