Homework Answers
So if we replace with metal of higher work function then
the graph will start from x>1
and increasing light intensity only increase photo current so
option c) best fits the answer 3rd row
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What would be the correct rows
Students investigating the photoelectric effect collect data for a particular...
The Photoelectric Effect A Review Constants Periodic Table Electrons are emitted from the surface of a...
The Photoelectric Effect A Review Constants Periodic Table Electrons are emitted from the surface of a metal when it's exposed to light. This is called the photoelectric effect. Each metal has a certain threshold frequency of light, below which nothing happens. Right at this threshold frequency, an electron is emitted. Above this frequency, the electron is emitted and the extra energy is transferred to the electron The equation for this phenomenon is Here are some data collected on a sample...
Quantum Physics - Photoelectric Effect 1 Light Light2 Photo- electrons KEL KEN-W Photoelectric Effect Lenard found...
Quantum Physics - Photoelectric Effect 1 Light Light2 Photo- electrons KEL KEN-W Photoelectric Effect Lenard found that light has to be above a certain frequency in order to observe photoelectrons The Planck constant is 6.626x10^-34 J s. The calcium metal has a work function WO = 2.71 eV, 1eV = 1.6x10^-19). (a) What is the Cutoff frequency for the calcium metal? Write the result in terms of 1014Hz. Keep 3 decimal places. Enter a number x1024Hz Submit (5 attempts remaining)...
4. The following data were obtained on electron kinetic energies ejected in studying the photoelectric effect...
4. The following data were obtained on electron kinetic energies ejected in studying the photoelectric effect from a potassium metal surface. Use Excel or Wolframalpha to evaluate the potassium work function and the Planck constant. Remember to first convert wavelength to ener 4.49 1.89 1.34 0.7000.311 Electron kinetic energies (x 10-19 Incident λ (nm) 3.09 | 250 | 300 350 400 450 500 WolframAlpha Example: linear fit {1.3, 2.2),12.1, 5.8),(3.7, 10.2;,(4.2, 11.8) 0 ama in %7D%7B3.7,+ 10.2%7D.47B42+1 1.8%7D Which aspect...
MAT 107 Project: Age of Students in College Professor Sumner Collect Data: (5 points) You will need to ask 30 college students their age. The students can attend any college or university. Use the tab...
MAT 107 Project: Age of Students in College Professor Sumner Collect Data: (5 points) You will need to ask 30 college students their age. The students can attend any college or university. Use the table below to input the data you collected. If you do the work for this project by hand, you must show the work you do to arrive at your results to earn full credit. If you use technology (computer, calculator, etc.) to obtain the results, you...
Question 5 5 pts A pair of students collected the following data. What is the correct mole ratio ...
Question 5 5 pts A pair of students collected the following data. What is the correct mole ratio based on the data collected? Temperature CIO S203 Change 20 30 30 20 10 40 40 10 2.6 6.5 10.1 6.3 5 45 1.4 Computer 9 MATERIALS Venier computer interface computer Temperature Probe two 10 mL graduated cylinders two 25 mL graduated cylinders two 50 mL graduated cylinders three 250 mL beakers 0.50 M sodium hypochlorite, NaOCI, solution 0.50 M sodium thiosulfate,...
A group of physics students collected data from a test of the projectile motion problem that...
A group of physics students collected data from a test of the projectile motion problem that was analyzed in a previous lab exercise (L5). In their test, the students varied the angle and initial velocity Vo at which the projectile was launched, and then measured the resulting time of flight (tright). Note that tright was the dependent variable, while and Vo were independent variables. The results are listed below. (degrees) Time of Flight (s) Initial Velocity V. (m/s) 15 20...
2.56 A researcher from a search engine company runs Internet searches and times how long each...
2.56 A researcher from a search engine company runs Internet searches and times how long each one takes. She found that 17 searches took 0.01 to 0.05 seconds; 57 took 0.06 to 0.10 seconds; 134 took 0.11 to 0.15 sec- onds; 146 took 0.16 to 0.20 seconds; 398 took 0.21 to 0.25 seconds; 82 took 0.26 to 0.30 seconds; and 56 took 0.31 to 0.35 seconds. Graph the frequency distribution and comment on its shape. A music teacher held an...
Organize and Display Data Data in the following data table were collected from a class of 9th grade students. ID...
Organize and Display Data Data in the following data table were collected from a class of 9th grade students. ID Gender Height (m) Female 2 Weight (kg) Exercise per week 6 Days 4 Days 0 Days 1 Day 1 Day 0 Days 1 Day 4 Days 4 Days 7 Days 1 Day 2 Days 0 Days 2 Days 7 Days 0 Days 4 Days 6 Days 3 Days 2 Days 6 Days 5 Days 0 Days 0 Days 7 Days...
Write a program that determines how many terms 10 students need to graduate. Step 1. Create...
Write a program that determines how many terms 10 students need
to graduate.
Step 1. Create an algorithm (either flowchart
or pseudocode) that you will use to write the program. Place the
algorithm in a Word document.
Step 2. Code the program in Eclipse and ensure
the following steps are accomplished.
1. Define a two-dimension array with 10 rows and 2
columns.
2. Prompt the user to enter the number of courses
they have left to graduate (value must be between 1...
1 A repelling force must occur between two charged objects under which conditions?
1 A repelling force must occur between two charged objects under which conditions? a. charges are of unlike signs b. charges are of like signs c. charges are of equal magnitude d.charges are of unequal magnitude 2 Two point charges are 4 cm apart. They are moved to a new separation of 2 cm. By what factor does the electric force between them change? a.2 b. 1/2 c.4 d. 1/4 3. By mapping the equipotential lines, you can draw a. the charge b. the electric field...
The Photoelectric Effect A Review Constants Periodic Table Electrons are emitted from the surface of a metal when it's exposed to light. This is called the photoelectric effect. Each metal has a certain threshold frequency of light, below which nothing happens. Right at this threshold frequency, an electron is emitted. Above this frequency, the electron is emitted and the extra energy is transferred to the electron The equation for this phenomenon is Here are some data collected on a sample...
Quantum Physics - Photoelectric Effect 1 Light Light2 Photo- electrons KEL KEN-W Photoelectric Effect Lenard found that light has to be above a certain frequency in order to observe photoelectrons The Planck constant is 6.626x10^-34 J s. The calcium metal has a work function WO = 2.71 eV, 1eV = 1.6x10^-19). (a) What is the Cutoff frequency for the calcium metal? Write the result in terms of 1014Hz. Keep 3 decimal places. Enter a number x1024Hz Submit (5 attempts remaining)...
4. The following data were obtained on electron kinetic energies ejected in studying the photoelectric effect from a potassium metal surface. Use Excel or Wolframalpha to evaluate the potassium work function and the Planck constant. Remember to first convert wavelength to ener 4.49 1.89 1.34 0.7000.311 Electron kinetic energies (x 10-19 Incident λ (nm) 3.09 | 250 | 300 350 400 450 500 WolframAlpha Example: linear fit {1.3, 2.2),12.1, 5.8),(3.7, 10.2;,(4.2, 11.8) 0 ama in %7D%7B3.7,+ 10.2%7D.47B42+1 1.8%7D Which aspect...
Question 5 5 pts A pair of students collected the following data. What is the correct mole ratio based on the data collected? Temperature CIO S203 Change 20 30 30 20 10 40 40 10 2.6 6.5 10.1 6.3 5 45 1.4 Computer 9 MATERIALS Venier computer interface computer Temperature Probe two 10 mL graduated cylinders two 25 mL graduated cylinders two 50 mL graduated cylinders three 250 mL beakers 0.50 M sodium hypochlorite, NaOCI, solution 0.50 M sodium thiosulfate,...
A group of physics students collected data from a test of the projectile motion problem that was analyzed in a previous lab exercise (L5). In their test, the students varied the angle and initial velocity Vo at which the projectile was launched, and then measured the resulting time of flight (tright). Note that tright was the dependent variable, while and Vo were independent variables. The results are listed below. (degrees) Time of Flight (s) Initial Velocity V. (m/s) 15 20...
2.56 A researcher from a search engine company runs Internet searches and times how long each one takes. She found that 17 searches took 0.01 to 0.05 seconds; 57 took 0.06 to 0.10 seconds; 134 took 0.11 to 0.15 sec- onds; 146 took 0.16 to 0.20 seconds; 398 took 0.21 to 0.25 seconds; 82 took 0.26 to 0.30 seconds; and 56 took 0.31 to 0.35 seconds. Graph the frequency distribution and comment on its shape. A music teacher held an...
Organize and Display Data Data in the following data table were collected from a class of 9th grade students. ID Gender Height (m) Female 2 Weight (kg) Exercise per week 6 Days 4 Days 0 Days 1 Day 1 Day 0 Days 1 Day 4 Days 4 Days 7 Days 1 Day 2 Days 0 Days 2 Days 7 Days 0 Days 4 Days 6 Days 3 Days 2 Days 6 Days 5 Days 0 Days 0 Days 7 Days...
Write a program that determines how many terms 10 students need
to graduate.
Step 1. Create an algorithm (either flowchart
or pseudocode) that you will use to write the program. Place the
algorithm in a Word document.
Step 2. Code the program in Eclipse and ensure
the following steps are accomplished.
1. Define a two-dimension array with 10 rows and 2
columns.
2. Prompt the user to enter the number of courses
they have left to graduate (value must be between 1...
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