Atoms | MCQs Quiz-02

A point charge q₀ is moving along a circular path of radius 'a', with a point charge -Q at the center of the circle. The kinetic energy of q₀ is-

(A) q₀Q / 4πε_oa

(B) q₀Q / 8πε_oa

(C) q₀Q / 4πε_oa²

(D) q₀Q / 8πε_oa²

A hydrogen atom makes a transition from third excited state to first excited state. The energy of the photon emitted in the process is-

A hydrogen atom makes a transition from n=5 to n=1 orbit. The wavelength of photon emitted is λ. The wavelength of photon emitted when it makes a transition from n=5 to n=2 orbit is-

The radius of the n^th orbit in Bohr model of hydrogen atom is proportional to-

(A) n²

(B) 1/n²

(C) n

(D) 1/n