Aphoton of energy `4.5` eV strikes on a metal surface of work function `3.0 eV.` If uncertainty in position is `(25)/(4pi)Å,` find the uncertainty in measurment of deBroglie wavelength (inÅ ).

Light of energy 2.0 eV falls on a metal of work function 1.4 eV . The stopping potential is

Light of wavelenght 5000 Å fall on a metal surface of work function 1.9 eV Find a. The energy of photon

When photon of energy 3.8 eV falls on metallic suface of work function 2.8 eV , then the kinetic energy of emitted electrons are

A photon of energy 4 eV is incident on a metal surface whose work function is 2 eV . The minimum reverse potential to be applied for stopping the emission of electrons is

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

Light of wavelength 2000 Å falls on a metallic surface whose work function is 4.21 eV. Calculate the stopping potential

Monochromatic photons of energy 3.3 eV are incident on a photo sensitive surface of work function 2.4 eV. , maximum velocity of photoelectron is

Light of wavelength 2000Å is incident on a metal surface of work function 3.0 eV. Find the minimum and maximum kinetic energy of the photoelectrons.

A photon of wavelength 4 xx 10^(-7)m strikes on metal surface, The work function of the metal is 2.13eV . The velocity of the photo electron is

A photon of wavelength 5000 lambda strikes a metal surface with work function 2.20 eV calculate aTHe energy of the photon in eV b. The kinetic energy of the emitted photo electron c. The velocity of the photoelectron