Stopping Potential Calculator

⤿

✖Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.ⓘ Wavelength [λ]			+10% -10%
✖Work Function of Surface of Metal is nothing but the binding energy of electron to the particular material.ⓘ Work Function of Surface of Metal [phi]			+10% -10%

✖Stopping potential is voltage difference required to stop electrons from moving between plates and creating a current in the photoelectric experiment.ⓘ Stopping Potential [V₀]

⎘ Copy

👎

Formula

✖

Stopping Potential

Formula

`"V"_{"0"} = ("[hP]"*"[c]")/("λ"*"[Charge-e]")-"phi"/"[Charge-e]"`

Example

`"-6.2E^20V"=("[hP]"*"[c]")/("2.1nm"*"[Charge-e]")-"100J"/"[Charge-e]"`

Calculator

LaTeX

Reset

👍

Download Modern Physics Formula PDF PDF Image

Stopping Potential Solution

STEP 0: Pre-Calculation Summary

Formula Used

Stopping Potential = ([hP]*[c])/(Wavelength*[Charge-e])-Work Function of Surface of Metal/[Charge-e]
V₀ = ([hP]*[c])/(λ*[Charge-e])-phi/[Charge-e]
This formula uses 3 Constants, 3 Variables

Constants Used

[Charge-e] - Charge of electron Value Taken As 1.60217662E-19
[hP] - Planck constant Value Taken As 6.626070040E-34
[c] - Light speed in vacuum Value Taken As 299792458.0

Variables Used

Stopping Potential - (Measured in Volt) - Stopping potential is voltage difference required to stop electrons from moving between plates and creating a current in the photoelectric experiment.
Wavelength - (Measured in Meter) - Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.
Work Function of Surface of Metal - (Measured in Joule) - Work Function of Surface of Metal is nothing but the binding energy of electron to the particular material.

STEP 1: Convert Input(s) to Base Unit

Wavelength: 2.1 Nanometer --> 2.1E-09 Meter (Check conversion here)
Work Function of Surface of Metal: 100 Joule --> 100 Joule No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V₀ = ([hP]*[c])/(λ*[Charge-e])-phi/[Charge-e] --> ([hP]*[c])/(2.1E-09*[Charge-e])-100/[Charge-e]

Evaluating ... ...

V₀ = -6.24150912899977E+20

STEP 3: Convert Result to Output's Unit

-6.24150912899977E+20 Volt --> No Conversion Required

FINAL ANSWER

-6.24150912899977E+20 ≈ -6.2E+20 Volt <-- Stopping Potential

(Calculation completed in 00.020 seconds)

You are here -

Home » Physics » Modern Physics » Photoelectric Effect » Stopping Potential

Credits

Created by Rudrani Tidke

Cummins College of Engineering for Women (CCEW), Pune

Rudrani Tidke has created this Calculator and 100+ more calculators!

Verified by Mona Gladys

St Joseph's College (SJC), Bengaluru

Mona Gladys has verified this Calculator and 1800+ more calculators!

< 8 Photoelectric Effect Calculators

Stopping Potential

Go Stopping Potential = ([hP]*[c])/(Wavelength*[Charge-e])-Work Function of Surface of Metal/[Charge-e]

Maximum Kinetic Energy of Ejected Photo-Electron

Go Max Kinetic Energy of Ejected Photo-Electron = [hP]*Frequency of Photon-Work Function of Surface of Metal

Photon's Energy using Wavelength

Go Photon Energy = [hP]*[c]/Wavelength

Threshold Frequency in Photoelectric Effect

Go Threshold Frequency = Work Function of Surface of Metal/[hP]

Photon's Energy using Frequency

Go Photon Energy = [hP]*Frequency of Photon

Photon's Momentum using Energy

Go Photon's Momentum = Photon Energy/[c]

Photon's Momentum using Wavelength

Go Photon's Momentum = [hP]/Wavelength

De Broglie Wavelength

Go Wavelength = [hP]/Photon's Momentum

Stopping Potential Formula

Stopping Potential = ([hP]*[c])/(Wavelength*[Charge-e])-Work Function of Surface of Metal/[Charge-e]
V₀ = ([hP]*[c])/(λ*[Charge-e])-phi/[Charge-e]

What is stopping potential in photoelectric effect?

The stopping voltage (or stopping potential) refers to the voltage difference required to stop electrons from moving between plates and creating a current in the photoelectric experiment. Recall that in the photoelectric experiment, light is directed onto a metal plate and if the frequency of light is high enough, electrons are ejected from the surface. These electrons then travel to a second metal plate found directly across. The minimum amount of energy that is required to eject an electron from the metal surface is known as the 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. The product of the charge on an electron and the stopping voltage gives us the maximum kinetic energy of that ejected electron.

How to Calculate Stopping Potential?

Stopping Potential calculator uses Stopping Potential = ([hP]*[c])/(Wavelength*[Charge-e])-Work Function of Surface of Metal/[Charge-e] to calculate the Stopping Potential, The Stopping Potential formula is defined as the required potential for stopping the removal of an electron from a metal surface when the incident light energy is greater than the work potential of the metal on which the incident light is focused. Stopping Potential is also known as cut-off-potential. Stopping Potential is denoted by V₀ symbol.

How to calculate Stopping Potential using this online calculator? To use this online calculator for Stopping Potential, enter Wavelength (λ) & Work Function of Surface of Metal (phi) and hit the calculate button. Here is how the Stopping Potential calculation can be explained with given input values -> -6.2E+20 = ([hP]*[c])/(2.1E-09*[Charge-e])-100/[Charge-e].

FAQ

What is Stopping Potential?

The Stopping Potential formula is defined as the required potential for stopping the removal of an electron from a metal surface when the incident light energy is greater than the work potential of the metal on which the incident light is focused. Stopping Potential is also known as cut-off-potential and is represented as V₀ = ([hP]*[c])/(λ*[Charge-e])-phi/[Charge-e] or Stopping Potential = ([hP]*[c])/(Wavelength*[Charge-e])-Work Function of Surface of Metal/[Charge-e]. Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire & Work Function of Surface of Metal is nothing but the binding energy of electron to the particular material.

How to calculate Stopping Potential?

The Stopping Potential formula is defined as the required potential for stopping the removal of an electron from a metal surface when the incident light energy is greater than the work potential of the metal on which the incident light is focused. Stopping Potential is also known as cut-off-potential is calculated using Stopping Potential = ([hP]*[c])/(Wavelength*[Charge-e])-Work Function of Surface of Metal/[Charge-e]. To calculate Stopping Potential, you need Wavelength (λ) & Work Function of Surface of Metal (phi). With our tool, you need to enter the respective value for Wavelength & Work Function of Surface of Metal and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search