What is stopping potential when metal with work function?

When a certain metallic surface is illuminated with monochromatic light of wavelength λ, the stopping potential for photoelectric current is 3V0​ and when the same surface is illuminated with light of wavelength 2λ, the stopping potential is V0​.

How do you find the stopping potential of a work function?

To Find: Stopping potential = Vs =? Given: Initial frequency = ν1 = 2.2 x 1015 Hz, initial stopping potential = Vs1 =6.6 V, Final frequency = ν2 = 4.6 x 1015 Hz, Final stopping potential = Vs2 = 16.5 V, Charge on electron = e = 1.6 x 10-19 C.

What will be the stopping potential When a photon of 25ev is incident of metal surface of work function 6ev?

The energy of the photon incident on the metal surface is 25 eV out of which 7 eV is used for knocking out the electron, the rest 18 eV goes into being the KE of the emitted electron. So atleast 18 V of potential is applied to stop the electron and hence the stopping potential is 18V.

When a metal is irradiated light of the energy ratio is 120 eV electron ratio is 120 eV eval eV eV evaluated the work Kinncdiated light?

When a metal is illuminated with light of frequency f, the maximum kinetic energy of the photoelectrons is 1.2 eV. When the frequency is increased by 50\% the maximum kinetic energy increases to 4.2 eV. What is the threshold frequency for this metal? Kmax=E-W1.2=E-W…

What is stopping potential?

Stopping potential is the minimum negative voltage applied to the anode to stop the photocurrent. The maximum kinetic energy of the electrons equal the stopping voltage, when measured in electron volt.

What is the relation between stopping potential and work function?

The maximum kinetic energy that the ejected electron has is given by subtracting the work function from the energy found in one photon of light. The stopping voltage is readily used to determine the kinetic energy that the electrons have as they are ejected from the metal plate.

How do you find the stopping voltage of a work function?

Starts here6:43Stopping Voltage and Work Function Example – YouTubeYouTube

When photons of energy 4ev falls on the surface of metal A?

When photons of energy 4.25eV strike the surface of a metal A, the ejected photoelectrons have maximum kinetic energy TA (expressed in eV ) and de-Broglie wavelength λ. The maximum kinetic energy of photoelectrons liberated from another metal B by photons of energy 4.70eV is TB=TA-1.50eV.

When a metal is irradiated by monochromatic?

when metal is irradiated by monochromatic light the maximum kinetic energy of the photoelectrons is 1.2 electron volt. If frequency of light is increased 50\% then maximum kinetic energy of the photoelectron is 3.6 electron volt.

When was a certain metal irradiated?

When a certain metal was irradiated with light of frequency 3.2×1016 Hz, the photoelectrons emitted had twice the kinetic energy as that of the photoelectrons emitted when the same metal was irradiated with light of frequency 2.0×1016 Hz. The value of ν∘ for the metal was found to be x×1016 Hz.

What is stopping potential symbol?

Stopping potential is that value of retarding potential difference between two plates which is just sufficient to halt the most energetic photoelectrons emitted. It is denoted by “Vo”.

What is stopping potential Shaalaa?

The minimum negative potential given to the anode of a photo-cell for which the photoelectric current becomes zero is called stopping potential.

What is the formula for stopping potential of photoelectric effect?

This is a problem relating to photo-electric effect where stopping potential is defined as that potential at which the photo electric current drops to zero. The symbol for stopping potential is V॰ and the formula to evaluate it is : V॰ = (hν – E॰)/e. where, hν = energy of the impinging photon on the metal, E॰ = work function of the metal and.

What is EV’s = hν – W?

If V s be the stopping potential then eV s = hν − W The stopping potential Vs depends only on the metal and does not depend on the intensity of incident light. a, b, c – different intensites. Example : Light from a discharge tube containing hydrogen atoms falls on the surface of a piece of sodium.

What does the stopping potential of light depend on?

The stopping potential Vs depends only on the metal and does not depend on the intensity of incident light. a , b , c – different intensites. Example : Light from a discharge tube containing hydrogen atoms falls on the surface of a piece of sodium. The kinetic energy of the fastest photo-electrons emitted from sodium is 0.73 eV.

How do you find the stopping potential of an electric current?

This is a problem relating to photo-electric effect where stopping potential is defined as that potential at which the photo electric current drops to zero. The symbol for stopping potential is V॰ and the formula to evaluate it is : V॰ = (hν – E॰)/e.