A metallic surface is irradiated with monochromatic light of variable wavelength. Above a wavelength of `5000 Å` no photoelectrons are emitted from the surface. With an unknown wavelength, stopping potential fo 3V is neceddsry ot eliminate the photocurrent. Find the unknown wavelenght.

When a certain metallic surface is irradiated with monochromatic light wavelength lambda , the stopping potential for photoelectric current is 3 V_(0) . When the same surface is irradiated with light of wavelength 2 lambda , the stopping potential is V_(0) The threshold wavelength for the given surface is

When a metallic surface is illuminated with monochromatic light of wavelength X, the stopping potential is 5Vq. When the same surface is illuminated with light of wavelength 3X, the stopping potential is Then the work function of the metallic surface is

When a metallic surface is illuminated with monochromatic light of wavelength lambda stopping potential for photoelectric current is 3 V_(0) . When the same metal surface Illuminated with a light of wavelength 2lambda , the stopping potential is V_(0) The threshold wavelength for the surface is

A certain, metallic surface is illuminated with monochromatic light of wavelength, lamda . The stopping potential for photoelectric current for this light is 3 V_(0) . If the same surface is illuminated with light of wavelength 2lamda , the stopping potential is V_(0) . The threshold wavelength for this surface for photoelectric effect is

A certain metallic surface is illuminated with monochromatic light of wavelength lamda . The stopping potential for photoelectric current for this light is 3V_0 . If the same surface is illuminated with light of wavelength 2 lamda , the stopping potential is V_0 . The threshold wavelength for this surface for photoelectric effect is

A certain metallic surface is illuminated with monochromatic light of wavelength lambda .The stopping potentail for photelectric current for this light is 3V_(0) .If the same surface is illuminated with light of wavelength 2lambda ,the stopping potential is V_(0) .The threshold wavelength for this surface for photoelectric effect is

When a certain metallic surface is illuminated with monochromatic light of wavelength lamda , the stopping potential for photoelectric current is 3V_0 and when the same surface is illuminated with light of wavelength 2lamda , the stopping potential is V_0 . The threshold wavelength of this surface for photoelectrice effect is

When a certain metallic surface is illuminated with monochromatic light of wavelength lamda , the stopping potential for photoelectric current is 3V_0 and when the same surface is illuminated with light of wavelength 2lamda , the stopping potential is V_0 . The threshold wavelength of this surface for photoelectrice effect is

When a certain metallic surface is illuminated with monochromatic light of wavelength lambda , the stopping potential for photo electric current is 6 v_(0) . When the same surface si illuminated with light of wavelength 2 lambda , the stopping potential is 2v_(0) . The threshold wavelength of this surface for photoelectric effect is -