In The Case Of A Constant Force, Work Is The Scalar Product Of The Force Acting On An Object And The Displacement Caused By That Force.
In physics, we say that a force does work if the application of the force displaces an object in the direction of the force. All those are states of electrons inside the material. Work function:the minimum amount of work required to eject the least tightly bound electrons from the metal surface, written as {eq}w_0 {/eq}.
• We Can Define Quantity Μwhich Is Function Of Internal State Of The Solid 7.1 Work Function:
W is the work done by the force. The minimum energy needed to eject an electron from a metal is known as the work function of the metal. Each metal or metal compound has a.
Work Function Is Different For Different Metals.
This energy is a measure of how tightly a particular metal holds its electrons—that is, of how much lower the electron’s energy is when present within the metal than when completely free. A photon having an energy at least equal to the work function can eject electron from the metal, frequency of such a photon whose energy is just equal to the work function is called threshold frequency. Uniform surfaces eφ µ (o) µ µ energy distance o µ eφ µ i (5.3.
But, I'm Still Looking For An Equation And A Definite Answer.
Work function is defined in physics as “ it is the minimum energy required by an electron to just escape from the metal surface so as to overcome the restraining forces at the surface. The work function is the attainable energy needed to detach electrons from the metal surface. F is the force, d is the displacement caused by the force;
The Work Function Φ, Or Threshold Energy, Of A Material Is Defined As:
Updated on april 23, 2019. It can be defined as the minimum energy that is required to remove an electron from its surface. And i know the equation to use: