The work functions of potassium and sodium are 4.5 eV and 2.3 eV respectively. The approximate ratio of their threshold wavelength will be -

The work functions of tungsten and sodium are 5.06 eV and 2.53 eV respectively. If the threshold wavelenth for sodium is 5896 Å , then the threshold wavelength for the tungsten will be

The work functions of tungsten and sodium are 5.06 eV and 2.53 eV respectively. If the threshold wavelenth for sodium is 5896 Å , then the threshold wavelength for the tungsten will be

The work functions of tungsten and sodium are 5.06 eV and 2.53 eV respectively. If the threshold wavelenth for sodium is 5896 Å , then the threshold wavelength for the tungsten will be

The work functions for potassium and caesium are 2.25 eV and 2.14 eV respectively. Will the photoelectric effect occur for either of these elements with light of wavelength 5180 overset(@)(A)

Work function of sodium and copper is 2.3 eV and 4.5 eV respectively.Ratio of their threshold wavelength will be…..

Work function of caesium and platinum are 2.14 eV and 5.65 eV respectively. Which one of the two metals has higher threshold wavelength? Justify.

Work function of tungsten and sodium are 4.4 eV and 2.3 eV respectively . If threshold wavelength of sodium is 5460 Å , then the threshold wavelength of tungsten is