Photoelectrons ar ejected from a surface when light of wavelenght `lamda_1=550 nm` is incident on it. The stopping potential for such electrons is `lamda_(S1)=0.19V`. Suppose that radiation of wavelength `lamda_2=190nm` is incident of the surface. ltbRgt Q. Calculate the threshold frequency for the surface.

Photoelectrons ar ejected from a surface when light of wavelenght lamda_1=550 nm is incident on it. The stopping potential for such electrons is lamda_(S1)=0.19V . Suppose that radiation of wavelength lamda_2=190nm is incident of the surface. Q. Calculate the stopping potential V_(S2) .

Photoelectrons ar ejected from a surface when light of wavelenght lamda_1=550 nm is incident on it. The stopping potential for such electrons is lamda_(S1)=0.19V . Suppose that radiation of wavelength lamda_2=190nm is incident of the surface. Q. Calculate the stopping potential V_(S2) .

Photoelectrons ar ejected from a surface when light of wavelenght lamda_1=550 nm is incident on it. The stopping potential for such electrons is lamda_(S1)=0.19V . Suppose that radiation of wavelength lamda_2=190nm is incident of the surface. Q. Calulate the work function of the surface.

Photoelectrons ar ejected from a surface when light of wavelenght lamda_1=550 nm is incident on it. The stopping potential for such electrons is lamda_(S1)=0.19V . Suppose that radiation of wavelength lamda_2=190nm is incident of the surface. Q. Calulate the work function of the surface.

A surface receives light of wavelength lambda_1=450 nm, causing the ejection of photo-electrons for which the stopping potential is V_(S_1)=0.2 V. If the radiations of wavelength lambda_2=120 nm are now incident on the surface, the threshold frequency for the surface is

A surface receives light of wavelength lambda_1=450 nm, causing the ejection of photo-electrons for which the stopping potential is V_(S_1)=0.2 V. If the radiations of wavelength lambda_2=120 nm are now incident on the surface, the threshold frequency for the surface is

A surface has light of wavelength lamda_1=550nm incident on it, causeing the ejection of photoelectrons for which the shopping potential is V_(s1)=0.19V . If the radiation of wavelength lamda_2=190nm is now incident on the surface, (a) calculate the stopping potential V_(s2) , (b) the work function of the surface, and (c) the threshold frequency for the surface.

What amount of energy sould be added to an electron to reduce its de Broglie wavelength lamda_1=550nm incident on it, causing the ejection of photoelectrons for which the stopping potential is V_(s1)=0.19V . If the radiation of wavelength lamda_2=190nm is now incident on the surface, (a) calculate the stopping potential V_(S2) , (b) the work function of the surface, and (c) the threshold frequency for the surface.