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[" Surface of certain metal is first illuminated with light of "],[" wavelength "lambda_(1)=350nm" and then by light of wavelength "],[lambda_(2)=540n-m" .It is found that the maximum speed of the "],[" photoelectrons in the two cases differ by a factor of "2." The "],[" work function of the metal (in eV) is close to "],[" (energy of photon "=(1240)/(lambda(inn-m))eV" ) "],[[" (a) "5.6," (b) "2.5," (c) "1.8," (d) "1.4]]

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Surface of certain metal is first illuminated with light of wavelength lambda_(1)=350 nm and then, by light of wavelength lambda_(2)=540 nm. It is found that the maximum speed of the photo electrons in the two cases differ by a factor of 2. The work function of the metal (in eV) is close to : (Energy of photon =(1240)/(lambda("in nm"))Ev

Surface of certain metal is first illuminated with light of wavelength lambda_(1)=350 nm and then, by light of wavelength lambda_(2)=540 nm. It is found that the maximum speed of the photo electrons in the two cases differ by a factor of 2. The work function of the metal (in eV) is close to : (Energy of photon =(1240)/(lambda("in nm"))Ev

Illuminating the surface of a certain metal alternatrly with light of wavelengths lambda_(1) = 0.35 mu m and lambda_(2) = 0.54 mu m , it was found that the corresponding maximum velocities of photoelectrons differ by a factor eta = 2.0 . Find the work function of taht metal.

Lights of wavelenths lambda_(1)=340nm and lambda_(2)=540nm are incident on a metallic surface. If the ratio of the maximum speeds of electrons ejected is 2, the work function of the metal is

Lights of wavelenths lambda_(1)=340nm and lambda_(2)=540nm are incident on a metallic surface. If the ratio of the maximum speeds of electrons ejected is 2, the work function of the metal is

Illuminating the surface of a certain metal alternatively with light of wavelength lambda_(1)=0.35 mu m and lambda_(2)=0.54 mu m , it was found that the corresponding maximum velocities of photo electrons have a ratio eta=12 . Find the work function of that metal.

Illuminating the surface of a certain metal alternately with light of wavelengths lambda_(1)=0.35 mu m and lambda-(2) =0.54 pm , it was found that the corresponding maximum velocities of photo electrons have a ratio eta = 2. Find the work function of that metal:

The surface of a metal is illuminated alternately with photons of energies E_(1) = 4 eV and E_(2) = 2.5 eV respectively. The ratio of maximum speeds of the photoelectrons emitted in the two cases is 2. The work function of the metal in (eV) is ________.

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