I think i got it.
h= (e)(slope) = (1.60×10−16 C)(3.8×10−15 V ⋅ s) = 6.1×10^−34 J ⋅ s
(6.1×10^−34 Js)(1.25x10^15) = 7.75x10^-19
then convert to ev
7.75x10^-19 / 1.6x10^-19 = 4.84 x10^-19
The solutions said fth =1.25×10^15 Hz.
h = planks constant = 6.26x10^-36
if you multiply you get 8.2825 i have to assume that's in jewels
so i convert that to ev
8.2825 / 1.6 x 10^-19 = 5.17ev
but the answer is 4.8ev
Homework Statement
The graph in fig shows the stopping potential as a function of the frequency of the incident light falling on the metal surface.
Find the photoelectric work function for this metal
Homework Equations
V_0 =\frac{hf}{e}-\frac{\phi}{e}
The Attempt at a Solution...
Homework Statement
in a cylinder, 1.2 mol of an ideal gas, gamma = 1.67 initially at 3.60 x10^5 pa
and 300k, is compressed until the volume is halved.
I need help with 1) c
and
2)
Compute work done on the gas if the compression is:
1)
a) isothermal
b) adiabatic
c) isobaric...
I know this problem has been asked before but i am trying to understand.
Homework Statement
A 2.00-kg block is pushed against a spring with negligible mass and force constant k = 400 N/m, compressing it 0.220 m. When the block is released, it moves along a frictionless, horizontal surface and...
Homework Statement
Show the following is true using theorems. State which theorem you use at each step.
A'BD' + BCD + ABC' + AB'D = A'BD' + BCD + ABC' + AB'D + BC'D' + A'BC + ABD
Homework Equations
The Attempt at a Solution
I am very new to boolean algebra and very...