Friday

April 18, 2014

April 18, 2014

Posted by **Jasmine** on Monday, December 12, 2011 at 11:02pm.

a) work function of the material, and

b) the original wavelength.

- Physics -
**drwls**, Tuesday, December 13, 2011 at 2:04amE1(max) = 0.5 eV = hc/L1 - phi

E2(max) = 3.8 eV = 2hc/L1 - phi

where

L1 = first wavelength

L1/2 = second wavelength

phi = work function

3.3 eV = hc/L1

b) Solve for L1 first

a) Then solve for phi

**Related Questions**

physics - quantum mechanics - hi can you please help me with this particular ...

Physics - The specific heat capacity of a material is 1200 J/(kg°C). The ...

physics - At t= 0, a particle starts from rest at x= 0, y= 0, and moves in the ...

Physics-totally bewildered!! - I have a physics question. This is for extra ...

Physics - The "work function", or the minimum energy needed to eject an electron...

Physics - A 285-kg load is lifted 22.0 m vertically with an acceleration a=0.170...

PHysics - A 250 kg load is lifted 23 m vertically with an acceleration a = 0....

physics - In an experiment to determine the rate at which heat is extracted from...

Math 3 - Find the inverse of the function f(x) = 5 – e^(x-1). Determine the ...

budgeting - You are estimating the contractor’s material handling cost as a ...