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In photoelectric effect light of certain...

In photoelectric effect light of certain frequency `( gt ` threshold frequency ) is incident on a metal surfave whereby , an `e^(-)` ( with certain K.E.) moves towards the collector plate and a flow of current is initiated . In order to stop the current flow, an opposite potential , on the two metal plates, is applied
The work function of metal is 6eV . If light of frequency ` 1 xx 10^(15) `Hz is incident on the metal , intensity of light is increased 4 times, then

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In photoelectric effect light of certain frequency ( gt threshold frequency ) is incident on a metal surfave whereby , an e^(-) ( with certain K.E.) moves towards the collector plate and a flow of current is initiated . In order to stop the current flow, an opposite potential , on the two metal plates, is applied The work function of a metal is 4eV. If light of frequency 2.3 xx 10^(15) Hz is incident on metal surface, then

In photoelectric effect light of certain frequency ( gt threshold frequency ) is incident on a metal surfave whereby , an e^(-) ( with certain K.E.) moves towards the collector plate and a flow of current is initiated . In order to stop the current flow, an opposite potential , on the two metal plates, is applied The work function of a metal is 4eV. If light of frequency 2.3 xx 10^(15) Hz is incident on metal surface, then

In photoelectric effect light of certain frequency ( gt threshold frequency ) is incident on a metal surfave whereby , an e^(-) ( with certain K.E.) moves towards the collector plate and a flow of current is initiated . In order to stop the current flow, an opposite potential , on the two metal plates, is applied A light of frequency 2.5xx 10^(15) Hz is incident on a metal surface having work function 4 eV. The velocity of photoelectron is ( in cm s^(-1))

In photoelectric effect light of certain frequency ( gt threshold frequency ) is incident on a metal surfave whereby , an e^(-) ( with certain K.E.) moves towards the collector plate and a flow of current is initiated . In order to stop the current flow, an opposite potential , on the two metal plates, is applied A light of frequency 2.5xx 10^(15) Hz is incident on a metal surface having work function 4 eV. The velocity of photoelectron is ( in cm s^(-1))

If the photoelectric work function of a metal is 5 eV , the threshold frequency of the metal is

If the photoelectric work function of a metal is 5 eV, calculate the threshold frequency of the metal.