An electron in the hydrogen atom jumps from excited state `n` to the ground state. The wavelength so emitted illuminates a photo-sensitive material having work function `2.75eV`. If the stopping potential of the photoelectron is `10V`, the value of `n` is

The electron in the hydrogen atom jumps form excited state (n=3) to its ground state (n=1) and the photons thus emitted irradiate a photosenstive material. If the work function of the material is 5.1eV, the stopping potential is estimated to be: (The energy of the electron in nth state is E_(n)=-13.6//n^(2)eV )

In hydrogen atom electron jumps from (n+1)th state to nth state the frequency of emitted photon is directly proportional to (n>>1)

Monochromatic radiation emitted when electron on hydrogen atom jumps from first excited to the ground state irradiates a photosensitive material The stopping potential is measured to be 3.57 V The threshold frequency of the material is

If the electron in hydrogen atom jumps from second Bohr orbit to ground state and difference between energies of the two states is radiated in the form of photons. If the work function of the material is 4.2 eV , then stopping potential is [Energy of electron in nth orbit = - (13.6)/(n^(2)) eV ]

Monochromatic radiation emitted when electron on hydrogen atom jumps from first excited to the ground state irradiates a photosensitive material. The stopping potential is measured material. The threshold frequency of the material is

The electron in a hydrogen atom at rest makes a transition from n = 2 energy state to the n = 1 ground state. find the energy (eV) of the emitted photon.