The threshold wavelength for silver is` 3800overset@ A`.Calculate the photoelectric work function for silver in eV.

Define Photoelectric work function .

Aluminium metal has a threshold frequency corresponding to wavelength 4770overset@ A . Calculate the photoelectric work function for aluminium and express it in eV.

The threshold wavelength for silver is 3800overset@ A . Calculate maximum kinetic energy in eV of photoelectrons emitted when ultraviolet light of wavelength 2600overset@ A falls on it. Also calculate stopping potential ( 1 eV = 1.6 xx 10^-19 J , Planck's constant = h = 6.63 xx 10^-34 Js , speed of light in vacuum = 3 xx 10^8 m//s ).

Photoelectric threshold wavelength of Tungsten is 2730overset@ A . Calculate its work function in electron volts. ( C = 3 xx 10^8 m//Sec., h = 6.63 xx 10^-34 Js )

Define threshold wavelength for photoelectric effect.

The wavelength corresponding to the threshold frequency for a certain metal is 5000overset@ A. Calculate the Max. K.E. of the photoelectron emitted when ultraviolet light of wavelength 2500overset@A falls on it.

The threshold wavelength for photoemission from molybdenum is 2960overset@ A . Its threshold frequency is

By stopping potential of 2 V, photoelectric current in photocell reduces to zero when cathode is exposed to light of wavelength 4000overset@ A . Calculate the work function of cathode surface..