What is light according to Einstein?
Why does it follow rectilinear propogation? Why does it what to acquire the shortest distance between two points? And what is that that gives energy to the light particles to gain motion??
Light travels in a straight path. This property of Light is called Rectilinear Propagation of Light in Physics.
Experiment~
Light energy is a kind of kinetic energy with the ability to make types of light visible to human eyes. Light is defined as a form of electromagnetic radiation emitted by hot objects like lasers, bulbs, and the sun.
Light contains photons which are minute packets of energy. When an object’s atoms get heated up, it results in the production of photons and this is how photons are produced. The electrons find excitement from the heat and results in earning extra energy. The energy is released in the form of a photon and more photons come out as the substance gets hotter.
Light travels in the form of a wave when it travels. However, no matter is essential to carry the energy along to travel. This is the reason why light can travel through space where there is no air.
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