Question

电子动能等于静能 求动量速度,波长多少?

Answer 1

Ek = (m-m0)c^2 = m0 * c^2

m = m0 / sqrt(1-v^2/c^2)

sqrt根号,m0静质量.

由上两式得v = sqrt3 / 2 *c

动量 mv = sqrt3 m0c

波长 = h/p = h/mv = sqrt3h / (3m0c)