[" The threshold wavelength of a metal is "lambda_(0)" .Light of wavelength "],[" slightly less than "lambda_(0)" is incident on an insulated plate made of this "],[" metal.Then mark the correct observations."]

The threshold wavelength of a metal is ( lambda_0). Light of wavelength slightly less than lambda_0 is incident on an insulated plate made of this metal. It is found that photoelectrons are emitted for sometimes and after that the emission stops. Explain.

The threshold wavelength of a metal is ( lambda_0). Light of wavelength slightly less than lambda_0 is incident on an insulated plate made of this metal. It is found that photoelectrons are emitted for sometimes and after that the emission stops. Explain.

The threshold wavelength of a metal is ( lambda_0). Light of wavelength slightly less than lambda_0 is incident on an insulated plate made of this metal. It is found that photoelectrons are emitted for sometimes and after that the emission stops. Explain.

Threshold wavelength of certain metal is lamda_0 A radiation of wavelength lamdaltlamda_0 is incident on the plate. Then, choose the correct statement from the following.

Threshold wavelength of certain metal is lamda_0 A radiation of wavelength lamdaltlamda_0 is incident on the plate. Then, choose the correct statement from the following.

The threshold wavelength for certain metal is lambda _(0) . When a light of wavelength (lambda_(0))//(2) is incident on it , the mximum velocity of photelectrons is 10^(6) m//s . If the wavelength of the incident radiation is reduced to (lambda _(0) // (5) , then the maximum velocity of the photoelectrons in m//s will be ,

The threshold wavelength of lithium is 8000 A^(0) When light of a wavelength 9000 A^(0) is made to be incident on it, then the photo electrons

The threshold wavelength (lambda_(0)) of sodium metal is 6500 Å . If UV light of wavelength 360 Å is used, what will be kinetic energy of the photoelectron in erge?