Science and myths's video: Einstein E mc equation Full story of E mc @InfinityLearnEdu

Infinity Learn Channel Link- https://youtube.com/@InfinityLearnEdu Contest Link- https://bit.ly/u_Rohit_Sharma_smm One of the most profound insights to come about in all of physics has been what’s easily Einstein’s most famous equation: E = mc². Quiet simply, it states that energy is equal to an object’s mass multiplied by the speed of light squared. This simple-seeming mathematical relation holds an enormous amount of physics inside of it, including: if you have a certain amount of energy available, you can spontaneously create new matter-antimatter pairs of particles as long as their rest mass is less than the amount of energy required to create them, if a matter-antimatter pair of particles annihilates, they will produce a specific amount of energy given by the masses of the pair of particles that annihilated, and that every time you have a nuclear reaction, whether fusion or fission, if the mass of the products is less than the mass of the reactants, E = mc² tells you how much energy will be liberated in that reaction. This one equation, E = mc², describes how much energy is inherent to any massive particle at rest, including how much energy it takes to create it and how much energy is released if you destroy it. But what if your particle isn’t at rest, or what if it doesn’t have any mass at all? In those cases, E = mc² is only half of the meaningful equation. The other half is far more interesting, and is required to make physical sense of what’s going on. The reason “rest mass” is such an important concept is because motion — the rate of change of an object’s position over time — isn’t an “absolute” physical property in our Universe. Instead, the key lesson from Einstein’s relativity is that irrespective of what your position is or how your position is changing with time, the laws of physics and the constants of nature, including the speed of light, are always going to appear to be the same. A quantum of energy that has no rest mass at all. Light, whether we treat it as a wave whose energy is defined by its wavelength or a particle whose energy is quantized into packets known as photons, has no rest mass, so the m in E = mc² has to equal zero. But light carries energy, so E = mc² can’t be all that there is, or E would equal zero, too, which it cannot. There’s a hint towards the solution if you took physics in High School or college, and learned about the “standard” formula for kinetic energy: KE = ½mv², where v is the speed of the object in motion. This formula only applies at speeds that are low compared to the speed of light: where v is much smaller than c, the speed of light in a vacuum. (That’s the same “c” that’s in E = mc²: 299,792,458 m/s.) Momentum is the “quantity of motion” that an object has, and it’s well-defined whether the thing that’s in motion is massive or massless, and, if massive, whether it moves close to the speed of light or not. Momentum, labeled with a p for very Latin reasons — arising either from the verb “pellere” (to push forcefully) or “petere” (to go) — is basically a measure of how much “Ooomph!” an object has to its motion, and consequently, how difficult it is to bring it to rest. For massive particles moving slow compared to the speed of light, momentum can be well-approximated by the simple formula p = mv. For massive particles moving at any speed, even at a substantial fraction of the speed of light, momentum is more precisely written p = mγv, where “γ” is the Lorentz factor: 1/√(1-(v/c)²). And for massless particles, like light, that move at the speed of light and have no rest mass at all, momentum can’t be written in terms of mass, but can be written in terms of energy very simply, as p = E/c. Now to know more watch out this full video till the end. Thanks for watching...... Social accounts link Instagram- https://www.instagram.com/scienceandmyths/ Facebook Page- https://www.facebook.com/ScienceAndMyths/ जानिए क्यों अधूरी है Einstein की ये फेमस E=mc² equation | Full story of E=mc² FAIR-USE COPYRIGHT DISCLAIMER This video is meant for Educational/Inspirational purpose only. We do not own any copyrights, all the rights go to their respective owners. The sole purpose of this video is to inspire, empower and educate the viewers.