Please create a detailed video on physics light - Reflection, refraction, absorption

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Light is electromagnetic radiation that travels as waves through space. It consists of oscillating electric and magnetic fields perpendicular to each other and to the direction of propagation. When light encounters matter, three primary interactions occur: reflection, where light bounces off surfaces; refraction, where light bends when passing through different materials; and absorption, where light energy is converted to other forms like heat. These fundamental interactions determine how we see and interact with light in our daily lives. The law of reflection is fundamental to understanding how light behaves when it encounters surfaces. It states that the angle of incidence equals the angle of reflection, both measured from the normal to the surface. There are two main types of reflection: specular reflection occurs on smooth surfaces like mirrors, where parallel incident rays remain parallel after reflection, creating clear images. Diffuse reflection happens on rough surfaces where incident rays scatter in many directions, making the surface appear matte. This principle explains why we can see ourselves in mirrors but not in rough walls. Refraction occurs when light passes from one medium to another with different optical densities. The refractive index determines how much light bends, defined as the ratio of light speed in vacuum to light speed in the medium. Snell's Law mathematically describes this bending: n₁ sin θ₁ equals n₂ sin θ₂. When light travels from a denser to less dense medium at angles greater than the critical angle, total internal reflection occurs. This principle is essential for fiber optic communications, where light signals travel through glass fibers by repeatedly reflecting off the fiber walls, allowing information to travel long distances with minimal loss. Absorption occurs when light energy is converted into other forms, primarily heat. Different materials absorb different wavelengths selectively, which creates color perception. A green filter absorbs most colors but transmits green light. Beer's Law describes how absorption depends on material thickness and absorption coefficient. At the molecular level, photons excite electrons to higher energy levels. This process is essential in photosynthesis, where chlorophyll absorbs light to convert carbon dioxide and water into glucose. Solar panels use absorption to convert light energy into electrical energy, demonstrating practical applications of light-matter interactions. In real-world scenarios, all three light-matter interactions occur simultaneously. When light hits a glass of water, about 4% reflects off the surface, 92% transmits through the glass and water with refraction, and 4% is absorbed as heat. Energy conservation requires that incident light energy equals the sum of reflected, transmitted, and absorbed energies. Rainbows demonstrate combined refraction and reflection in water droplets, separating white light into its component colors. The blue sky results from Rayleigh scattering, where shorter blue wavelengths scatter more than longer red wavelengths. These principles are fundamental to designing optical devices like cameras, telescopes, and eyeglasses.