Calcium plate has maximum possible radiation of wavelength 1 of 400 nm to eject electrons . It’s work function is

What is the wave number of a radiation of wavelength 400 nm ?

What is the wave number of a radiation of wavelength 400 nm ?

A wavelength of 400 nm of electromagnetic radiation corresponds to

A wavelength of 400 nm of an electromagnetic radiation is corresponding to

Radiation of wavelength 120 nm ejects photoelectrons from a plate whose work function is 3.0 eV. If a magnetic field of flux density 4.0 xx10^-5 T is applied parallel to the plate, then the radius of the path followed by electrons ejected normally from the plate with maximum energy will be

Radiation of wavelength 120 nm ejects photoelectrons from a plate whose work function is 3.0 eV. If a magnetic field of flux density 4.0 xx10^-5 T is applied parallel to the plate, then the radius of the path followed by electrons ejected normally from the plate with maximum energy will be

When radiation of wavelength 253.7nm falls on a copper surface, electrons are ejected. Calculate work function if the stopping potential is 0.5 V.