Kinetic Energy of Photoelectrons given Threshold Energy Solution

STEP 0: Pre-Calculation Summary
Formula Used
Kinetic Energy = Energy of Photon-Threshold Energy
KE = Ephoton-W
This formula uses 3 Variables
Variables Used
Kinetic Energy - (Measured in Joule) - Kinetic Energy is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.
Energy of Photon - (Measured in Joule) - Energy of Photon is the energy carried by a single photon. It is denoted by E.
Threshold Energy - (Measured in Joule) - Threshold Energy or work function of a particle is the minimum kinetic energy a pair of traveling particles must have when they collide.
STEP 1: Convert Input(s) to Base Unit
Energy of Photon: 6000 Joule --> 6000 Joule No Conversion Required
Threshold Energy: 900 Joule --> 900 Joule No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
KE = Ephoton-W --> 6000-900
Evaluating ... ...
KE = 5100
STEP 3: Convert Result to Output's Unit
5100 Joule --> No Conversion Required
FINAL ANSWER
5100 Joule <-- Kinetic Energy
(Calculation completed in 00.020 seconds)

Credits

Created by Akshada Kulkarni
National Institute of Information Technology (NIIT), Neemrana
Akshada Kulkarni has created this Calculator and 500+ more calculators!
Verified by Pragati Jaju
College Of Engineering (COEP), Pune
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Kinetic Energy of Photoelectrons given Threshold Energy Formula

Kinetic Energy = Energy of Photon-Threshold Energy
KE = Ephoton-W

What is Photo-electric effect?

The phenomenon of ejection of electrons from the surface of the metal when the light of suitable frequency strikes is called a photo-electric effect. The electrons ejected are called photoelectrons. The minimum frequency required to eject the electrons is called threshold frequency. A part of the energy of a photon is used to escape the electron from the attractive forces and the remaining energy is used in increasing the kinetic energy of an electron.

How to Calculate Kinetic Energy of Photoelectrons given Threshold Energy?

Kinetic Energy of Photoelectrons given Threshold Energy calculator uses Kinetic Energy = Energy of Photon-Threshold Energy to calculate the Kinetic Energy, The Kinetic energy of photoelectrons given threshold energy is defined as kinetic energy consumed by a moving particle when it moves from one point to another. Kinetic Energy is denoted by KE symbol.

How to calculate Kinetic Energy of Photoelectrons given Threshold Energy using this online calculator? To use this online calculator for Kinetic Energy of Photoelectrons given Threshold Energy, enter Energy of Photon (Ephoton) & Threshold Energy (W) and hit the calculate button. Here is how the Kinetic Energy of Photoelectrons given Threshold Energy calculation can be explained with given input values -> 5100 = 6000-900.

FAQ

What is Kinetic Energy of Photoelectrons given Threshold Energy?
The Kinetic energy of photoelectrons given threshold energy is defined as kinetic energy consumed by a moving particle when it moves from one point to another and is represented as KE = Ephoton-W or Kinetic Energy = Energy of Photon-Threshold Energy. Energy of Photon is the energy carried by a single photon. It is denoted by E & Threshold Energy or work function of a particle is the minimum kinetic energy a pair of traveling particles must have when they collide.
How to calculate Kinetic Energy of Photoelectrons given Threshold Energy?
The Kinetic energy of photoelectrons given threshold energy is defined as kinetic energy consumed by a moving particle when it moves from one point to another is calculated using Kinetic Energy = Energy of Photon-Threshold Energy. To calculate Kinetic Energy of Photoelectrons given Threshold Energy, you need Energy of Photon (Ephoton) & Threshold Energy (W). With our tool, you need to enter the respective value for Energy of Photon & Threshold Energy and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Kinetic Energy?
In this formula, Kinetic Energy uses Energy of Photon & Threshold Energy. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Kinetic Energy = [hP]*[c]*(Threshold Wavelength-Wavelength)/(Wavelength*Threshold Wavelength)
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