Select the following correct MC answer for the questions pertaining to the Photoelectric Experiment

1. The quantized nature of photon energy is confirmed by the photoelectric effect since

Select one:

a. only the right number of photons hitting the metal surface consecutively will cause electron ejection.

b. only a photon carrying the right amount energy will eject an electron from the metal surface.

c. only light of the highest intensity will be able to cause electron ejection.

d. any photon, regardless of the energy it carries, will be able to eject an electron.

2. In the photoelectric effect experiment we use a Hg lamp to shine a light on a metal surface encased inside a photocell. One of the things we observe is that the energy of electrons ejected from the metal surface is independent of the intensity of light that shines on that surface. In practice this means that

Select one:

a. if we don’t move the lamp at all the photoelectric effect cannot take place.

b. if we move the lamp further away from the photocell than the photocurrent (amount of ejected electrons) will increase.

c. if we move the lamp closer to the photocell nothing will happen to the photocurrent (amount of ejected electrons).

d. if we move the lamp closer to the photocell we will increase the photocurrent (amount of ejected electrons) without increasing individual electron’s energy.

3. In the photoelectric effect experiment we use a Hg lamp to shine a light on a metal surface encased inside a photocell. There are multiple filters mounted on the front of the photocell to help us separate the light from the lamp into single-wavelength beams. Which of the following statements is true?

Select one:

a. Knowing the wavelength of the incoming photons does not help us determine the energy of the ejected electrons.

b. Even if we had monochromatic light source, we would still need filters to separate its constituent wavelengths.

c. Without the filters the photoelectric effect cannot occur.

d. Without the filters the photoelectric effect will still happen, but we will have no way to determine which electron was ejected by which photon wavelength.

4. The sign (positive or negative) on the value of the work function gives us an indication of the direction of energy flow between the metal surface (the system) and the environment around it (the surroundings) during the photoelectric effect. The sign on the work function is interpreted from the point of view of the system (the metal surface). For example, if the work function is positive the energy is flowing into the system from the surroundings (i.e. the energy of the system is increasing). Which of the following statements is true?

Select one:

a. We expect the work function to be positive, because energy must be given to the system for an electron to be ejected.

b. We expect the work function to be positive, because energy must be released by the system for an electron to be ejected.

c. We expect the work function to be negative, because energy must be released by the system for an electron to be ejected.

d. We expect the work function to be negative, because energy must be given to the system for an electron to be ejected.

The University of Cincinnati Center for Business Analytics is an outreach center that collaborates with industry partners on applied research and continuing education in business analytics. One of the programs offered by the center is a quarterly Business Intelligence Symposium. Each symposium features three speakers on the real-world use of analytics. Each of the corporate members of the center (there are currently 10) receives thirteen free seats to each symposium. Nonmembers wishing to attend must pay $75 per person. Each attendee receives breakfast, lunch, and free parking. The following are the costs incurred for putting on this event: Rental cost for the auditorium: $150 Registration Processing: $8.50 per person Speaker Costs: 3@$800 $2,400 Continental Breakfast: $4.00 per person Lunch: $7.00 per person Parking: $5.00 per person

a) The Center for Business Analytics is considering a refund policy for no-shows. No refund would be given for members who do not attend, but for nonmembers who do not attend, 50% of the price will be refunded. Build a spreadsheet model in Excel that calculates a profit or loss based on the number of nonmember registrants. Extend the model you developed for the Business Intelligence Symposium to account for the fact that historically, 25% of members who registered do not show and 10% of registered nonmembers do not attend. The center pays the caterer for breakfast and lunch based on the number of registrants (not the number of attendees). However, the center only pays for parking for those who attend. What is the profit if each corporate member registers their full allotment of tickets and 127 nonmembers register? If required, round your answers to two decimal places.

b)Use a two-way data table to show how profit changes as a function of number of registered nonmembers and the no-show percentage of nonmembers. Vary number of nonmember registrants from 80 to 160 in increments of 5 and the percentage of nonmember no-shows from 10% to 30% in increments of 2%. In which interval of nonmember registrants does breakeven occur if the percentage of nonmember no-shows is 22%?

Break even appears in the interval of ___ to ____ number of registered voters

The University of Cincinnati Center for Business Analytics is an outreach center that collaborates with industry partners on applied research and continuing education in business analytics. One of the programs offered by the center is a quarterly Business Intelligence Symposium. Each symposium features three speakers on the real-world use of analytics. Each of the corporate members of the center (there are currently 10) receives nine free seats to each symposium. Nonmembers wishing to attend must pay $75 per person. Each attendee receives breakfast, lunch, and free parking. The following are the costs incurred for putting on this event: Rental cost for the auditorium: $150 Registration Processing: $8.50 per person Speaker Costs: 3@$800 $2,400 Continental Breakfast: $4.00 per person Lunch: $7.00 per person Parking: $5.00 per person

(a) The Center for Business Analytics is considering a refund policy for no-shows. No refund would be given for members who do not attend, but for nonmembers who do not attend, 50% of the price will be refunded. Build a spreadsheet model in Excel that calculates a profit or loss based on the number of nonmember registrants. Extend the model you developed for the Business Intelligence Symposium to account for the fact that historically, 25% of members who registered do not show and 10% of registered nonmembers do not attend. The center pays the caterer for breakfast and lunch based on the number of registrants (not the number of attendees). However, the center only pays for parking for those who attend. What is the profit if each corporate member registers their full allotment of tickets and 127 nonmembers register? If required, round your answers to two decimal places. $ _______

(b) Use a two-way data table to show how profit changes as a function of number of registered nonmembers and the no-show percentage of nonmembers. Vary number of nonmember registrants from 80 to 160 in increments of 5 and the percentage of nonmember no-shows from 10% to 30% in increments of 2%. In which interval of nonmember registrants does breakeven occur if the percentage of nonmember no-shows is 22%? Breakeven appears in the interval of to number of registered nonmembers.

The University of Cincinnati Center for Business Analytics is an outreach center that collaborates with industry partners on applied research and continuing education in business analytics. One of the programs offered by the center is a quarterly Business Intelligence Symposium. Each symposium features three speakers on the real-world use of analytics. Each of the corporate members of the center (there are currently 10) receives thirteen free seats to each symposium. Nonmembers wishing to attend must pay $75 per person. Each attendee receives breakfast, lunch, and free parking. The following are the costs incurred for putting on this event:

The University of Cincinnati Center for Business Analytics is an outreach center that collaborates with industry partners on applied research and continuing education in business analytics. One of the programs offered by the center is a quarterly Business Intelligence Symposium. Each symposium features three speakers on the real-world use of analytics. Each of the corporate members of the center (there are currently 10) receives twelve free seats to each symposium. Nonmembers wishing to attend must pay $75 per person. Each attendee receives breakfast, lunch, and free parking. The following are the costs incurred for putting on this event:

The University of Cincinnati Center for Business Analytics is an outreach center that collaborates with industry partners on applied research and continuing education in business analytics. One of the programs offered by the center is a quarterly Business Intelligence Symposium. Each symposium features three speakers on the real-world use of analytics. Each of the corporate members of the center (there are currently 10) receives eight free seats to each symposium. Nonmembers wishing to attend must pay $75 per person. Each attendee receives breakfast, lunch, and free parking. The following are the costs incurred for putting on this event:

The University of Cincinnati Center for Business Analytics is an outreach center that collaborates with industry partners on applied research and continuing education in business analytics. One of the programs offered by the center is a quarterly Business Intelligence Symposium. Each symposium features three speakers on the real-world use of analytics. Each of the corporate members of the center (there are currently 10) receives twelve free seats to each symposium. Nonmembers wishing to attend must pay $75 per person. Each attendee receives breakfast, lunch, and free parking. The following are the costs incurred for putting on this event:

The University of Cincinnati Center for Business Analytics is an outreach center that collaborates with industry partners on applied research and continuing education in business analytics. One of the programs offered by the center is a quarterly Business Intelligence Symposium. Each symposium features three speakers on the real-world use of analytics. Each of the corporate members of the center (there are currently 10) receives six free seats to each symposium. Nonmembers wishing to attend must pay $75 per person. Each attendee receives breakfast, lunch, and free parking. The following are the costs incurred for putting on this event:

The University of Cincinnati Center for Business Analytics is an outreach center that collaborates with industry partners on applied research and continuing education in business analytics. One of the programs offered by the center is a quarterly Business Intelligence Symposium. Each symposium features three speakers on the real-world use of analytics. Each of the corporate members of the center (there are currently 10) receives eight free seats to each symposium. Nonmembers wishing to attend must pay $75 per person. Each attendee receives breakfast, lunch, and free parking. The following are the costs incurred for putting on this event: