What is the velocity of the electron ?

A beam of electron is moving with constant velocity in a region having electric and magnetic fields of strength 20Vm^(-1) and 0.5T at right angles to the direction of motion of the electrons. What is the velocity of the electrons?

Electrons with wavelength '12 pm' are used for electron diffraction. What is the velocity of these electrons?

What is the velocity of an electron so that its momentum is equal to the momentum of a photon associated with radiation of wave length 650 nm?

What is the velocity of an electron (m = 9.11 xx 10^(-28) g) that exhibits a de Broglie wavelength of 10.0 nm ? [ 1 J = 1kg dot" m^(2)* s^(2) ]

What is the velocity of electron in second orbital of He^(+) ion.

" What is the velocity of electron in "6" th "Bohr's" orbit of "H-" atom? "

What is the velocity of electron in Bohr's third orbit of hydrogen atom ? Also calculate the number of revolutions the electron makes in Bohr's third orbit in one second.

What is the velocity of electrons in'the first Bohr Orbit of Hydrogen atom:

Charge of an electron is e and mass m. The electron is moving around a nucleus of charge Ze in a cirular path of radius r. What will be the velocity of the electron ?