What are the slope and y intercept in the graph of stopping?

Explanation: Using conservation of energy, in such a condition, Energy(by source,cell,etc) is equal to the kinetic energy(max) of the electrons. ⇒ eV = KE, where V is the stopping potential.

Why is the work function the Y intercept?

The electron has just enough energy to be knocked off the surface, but that’s it! The y-intercept is the work function of the material. As the frequency goes from zero to higher values, the electron is lifted higher out of the hole, until finally at its threshold frequency it’s out.

What is the slope of an energy vs frequency graph?

The slope of the straight line obtained by plotting the kinetic energy as a function of frequency above the threshold frequency is just Planck’s constant, and the x-intercept, where 12mv2=0, is just the work function of the metal, Φ=hν0.

How is the slope of the photoelectric effect determined?

For light shining on the metal, there is a minimum “cutoff” frequency before the ejected electrons have any KE. Photons with a frequency less than f C don’t have enough energy to dislodge the electrons from the metal. The slope of the graph is h , Planck’s constant. The value for the cutoff frequency is simply the x intercept.

What is the y intercept of the photoelectric effect?

Energy out equals energy in minus energy consumed in ionization. The energy of the photon is proportional to f. If you make f zero, you are looking at the y- intercept.

How to write formula for photoelectric effect graph?

You can even relate the photoelectric effect formula to the formula for a straight line graph if it helps you remember what the three parts of the graph represent. y= mx+ b Ekmax= hf + –W hf = Ekmax+ W ●The y axisis Ekmax ●The slope(m) is Planck’s Constant(h) ●The x axisis the frequency ●The y interceptis the work function(W) Homework

How does the slope and y-intercept calculator work?

The slope and y-intercept calculator takes a linear equation and allows you to calculate the slope and y-intercept for the equation. The equation can be in any form as long as its linear and and you can find the slope and y-intercept.