At what speed would the mass of an electron become double of its rest mass??? give its calculation also????
Answers
Answer: The mass does not change.
But the energy (divided by c2) was for odd reasons sometimes called the “relativistic mass” in the past
— although not by Einstein, who objected for exactly the reason that modern physicists would.
So I think the equivalent question is “at what speed does an electron’s energy become twice its mass?”
This is luckily a very easy one to answer
because the Lorentz gamma factor in E=γmc2 is computed
as γ=1/1−v2/c2−−−−−−−−√=E/mc2.
So for this question γ=2, and by squaring that and rearranging we get v2/c2=1−14=34
Take the square root again and you get the relevant speed as a fraction of c.
(I’m purposefully not giving the numerical answer here, to avoid homework shortcuts: you can work it out for yourself from the description above.)
Note that this applies to anything, not just electrons, since there’s no dependence on the (rest) mass.
Mark me as brainliest. And stay safe.
Answer:
Notice that it doesnot even matter if we talk about the mass of the electron or any other particle. This holds for every massive particle (m0 is not equal to 0). This is true in general; the speed at which the mass of a particle gets doubled with respect to its rest mass is around of the speed of light
