PhysicsEasy183×since 2002Q5979The acceleration of an electron in the first orbit of the hydrogen atom (n = 1) is :Ah2π2m2r3{{{h^2}} \over {{\pi ^2}{m^2}{r^3}}}π2m2r3h2Bh28π2m2r3{{{h^2}} \over {{8\pi ^2}{m^2}{r^3}}}8π2m2r3h2Ch24π2m2r3{{{h^2}} \over {{4\pi ^2}{m^2}{r^3}}}4π2m2r3h2Dh24πm2r3{{{h^2}} \over {{4\pi }{m^2}{r^3}}}4πm2r3h2Check answerSkip