A gas containing hydrogen like atoms with atomic number Z, emit photons in transition `n+2ton,` where `n=Z` and work function of metal is `4.2eV`. The photons are incident on the metal emitting electrons of minimum de Broglie wavelength `5A^(0)`

A gas containining hydrogen-like ions, with atomic number Z , emits photons in transition n + 2 to n, where n = Z These photons fall on a metallic plate and eject electrons having minimum de Broglie wavelength lambda of 5 Å . Find the value of Z , if the work function of metal is 4.2 eV

A gas containining hydrogen-like ions, with atomic number Z , emits photons in transition n + 2 to n, where n = Z These photons fall on a metallic plate and eject electrons having minimum de Broglie wavelength lambda of 5 Å . Find the value of Z , if the work function of metal is 4.2 eV

A gas containining hydrogen-like ions, with atomic number Z , emits photons in transition n + 2 to n, where n = Z These photons fall on a metallic plate and eject electrons having minimum de Broglie wavelength lambda of 5 Å . Find the value of Z , if the work function of metal is 4.2 eV

Work function of a metal is 2 eV. The maximum wavelength of photons required to emit electrons from its surface is

Work function of a metal is 2 eV. The maximum wavelength of photons required to emit electrons from its surface is

The energy of emitted photoelectrons from a metal is 0.9ev , The work function of the metal is 2.2eV . Then the energy of the incident photon is

Electrons in a sample of gas containing hydrogen-like atom (Z = 3) are in fourth excited state. When photons emitted only due to transition from third excited state to second excited state are incident on a metal plate photoelectorns are ejected. The stopping potential for these photoelectorns is 3.95 eV . now, if only photons emitted due to transition from fourth excited state to third excited state are incident on the same metal plate, the stopping potential for the emitted photoelectrons will be appoximetely equal to

Photons of energy 6 eV are incident on a metal surface whose work function is 4 eV . The minimum kinetic energy of the emitted photo - electrons will be