3. Determine the experimental value of Planck's constant, h, from this graphusing Excel.4. Determine an equation of the line. The y-intercept of the line is the workfunction, p, of the metal.5. Write the equation of the line in the form y = mx + b:¥=0.4157 x -6. Convert the work function to eV.7. Extrapolate the line until it intersects the horizontal axis and vertical axis.8. The slope of the line is the experimental value of Planck's constant (h). Findthe % error for h using the formula below.Data TableFrequency (x10¹4 Hz)11.810.69.99.18.26.92,30424=Energy (EV)2.602.111.811.471.100.57 ResultsI) Experimental value of Planck's constant, h =II)III)Work Function=p=.II)III)% error = |6.63 x 10-34-h6.63 x 10-34Excel Instructions for Creating a GraphI)|x 100a. Check the box "Trendlines"i. More Options...=Highlight a data point. The data point should have four small circlesaround it.A side bar window ("Format Data Series") should open.Choose:ii. Highlight Lineariii. Choose Display Equation or Chart. The equation will be of theform:y = mx + b, where m is the slope and b is the y-intercept

From the graph, the equation of line is ---------(1)Now we know that Einstein's equation of…

3. Determine the experimental value of Planck's constant, h, from this graph using Excel. 4. Determine an equation of the line. The y-intercept of the line is the work function, p, of the metal. 5. Write the equation of the line in the form y = mx + b: ¥=0.4157 x = 2,3042 6. Convert the work function to eV. 4= 7. Extrapolate the line until it intersects the horizontal axis and vertical axis. 8. The slope of the line is the experimental value of Planck's constant (h). Find the % error for h using the formula below.

3. Determine the experimental value of Planck's constant, h, from this graph using Excel. 4. Determine an equation of the line. The y-intercept of the line is the work function, p, of the metal. 5. Write the equation of the line in the form y = mx + b: ¥=0.4157 x = 2,3042 6. Convert the work function to eV. 4= 7. Extrapolate the line until it intersects the horizontal axis and vertical axis. 8. The slope of the line is the experimental value of Planck's constant (h). Find the % error for h using the formula below.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

3. Determine the experimental value of Planck's constant, h, from this graph
using Excel.
4. Determine an equation of the line. The y-intercept of the line is the work
function, p, of the metal.
5. Write the equation of the line in the form y = mx + b:
¥=0.4157 x -
6. Convert the work function to eV.
7. Extrapolate the line until it intersects the horizontal axis and vertical axis.
8. The slope of the line is the experimental value of Planck's constant (h). Find
the % error for h using the formula below.
Data Table
Frequency (x10¹4 Hz)
11.8
10.6
9.9
9.1
8.2
6.9
2,3042
4=
Energy (EV)
2.60
2.11
1.81
1.47
1.10
0.57

Results
I) Experimental value of Planck's constant, h =
II)
III)
Work Function=p=.
II)
III)
% error = |
6.63 x 10-34-h
6.63 x 10-34
Excel Instructions for Creating a Graph
I)
|x 100
a. Check the box "Trendlines"
i. More Options...
=
Highlight a data point. The data point should have four small circles
around it.
A side bar window ("Format Data Series") should open.
Choose:
ii. Highlight Linear
iii. Choose Display Equation or Chart. The equation will be of the
form:
y = mx + b, where m is the slope and b is the y-intercept

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Step 1: Introduce the Einstein's equation of photo electric effect

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Step 2: Calculate the Planck's constant h

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Step 3: Calculate the value of work function

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Step 4: Calculate the percentage error in Planck's constant

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