" A metal surface is exposed to solar radiations "

A metal surface is exposed to 500 nm radiation. The threshold frequency of the metal for photoelectric current is 4.3 xx 10^(14) Hz. The velocity of ejected electron is ____ xx 10^5 ms^(-1) . (Nearest integer)

Electrons are emitted with zero velocity from a metal surface when it is exposed to radiation of wavelength 4000Å . What is the threshold frequency (upsilon_(0)) ?

Electrons are emittes with zero velocity from a metal surface when it is exposed to radiation of wavelength 6800A^@ . Calculate threshold frequency (nu_0) and a work function (W_0) of the metal.

Electrons are emitted with zero velocity from a metal surface when it is exposed to radiation of wavelength 6800 overset@A . Calculate the threshold frequency (v_0) and work function (w_0) of the metal.

Electrons are emitted with zero velocity from a metal surface when it is exposed to radiation of wavelength 6800 Å. Calculate threshold frequency (v_(0)) and work function (W_(0)) of the metal.

Electrons are emitted with zero velocity from a metal surface when it is exposed to radiation of wavelength 6800 Å . Calculate threshold frequency ( v_0) and work function (W_0) of the metal.

Electrons are emitted with zero velocity from a metal surface when it is exposed to radiation of wavelength 6800 Å. Calculate threshold frequency (V_(0)) and work function (W_(0)) of metal.