The work function of sodium is 2.3 eV . The threshold wavelength of sodium will be

The work function of Na metal is 2.3 eV , then the threshold wavelength lies in the following region of EM spectrum -

The work function of a metal is 4.2 eV , its threshold wavelength will be

The work function of a metal is 4.2 eV , its threshold wavelength will be

The work function of a metal is 4.2 eV , its threshold wavelength will be

The work function of a metal is 3eV. Calculate its threshold wavelength.

The work function of sodium is 2.3 eV. Calculate the maximum wavelength for the light that will cause photoelectrons to be emitted from sodium.

Light strikes a sodium surface, causing photoelectric emission. The stopping potential for the ejected electrons is 5.0 V, and the work function of sodium is 2.2 eV. What is the wavelength of the incident light?

The work function of photometal is 6.626 eV. What is the threshold wavelength ?