16．Which of the following statements are correct?
(A)If electrons have been accelerated from rest through a potential difference of 54 V, then the wavelength of electrons is 1.667 nm.
(B)For high principle quantum number (n) for hydrogen atom, the spacing between the neighboring energy levels is proportional to 1/n³.
(C)A particle of mass mₑ trapped in an infinite depth well of width L=1 nm. The transition from excited state n=2 to ground state n=1. The wavelength of light emitted is 886.4 nm.
(D)The relation for total energy E and momentum p for a relativistic particle is E²=c²p²+m²c⁴. The product of group velocity and the phase velocity is equal to c².
(E)If the electron wave function is Ce^(ikx) between x=2 and x=22 cm, zero everywhere else. The probability of finding the electron between x=0 and x=4 cm is 0.1.