you made the wavelength of the light shorter and the frequency higher. What effect did this have on the ejected electrons? Select each effect you observed in the simulation when you changed the wavelength of the light. a The ejected electrons had a greater kinetic energy. O There was no change in the number or energy of the electrons ejected. O The number and energy of the ejected electrons was the same as before, but it didn't take as long for the electrons to start coming off the metal. O More electrons were ejected.

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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In the wave theory of light, different colors of light do not have different energies. It is the
brightness of the light, not the wavelength or frequency, that determines the energy of the
wave. When you changed the wavelength from 500 nm to 440 nm in Step 5 of the experiment
you made the wavelength of the light shorter and the frequency higher. What effect did this
have on the ejected electrons? Select each effect you observed in the simulation when you
changed the wavelength of the light.
a The ejected electrons had a greater kinetic energy.
O There was no change in the number or energy of the electrons ejected.
O The number and energy of the ejected electrons was the same as before, but it didn't take
as long for the electrons to start coming off the metal.
O More electrons were ejected.
In Step 6 of the procedure, what was the threshold wavelength for potassium (the longest
wavelength that still ejected electrons), in nm?
Transcribed Image Text:In the wave theory of light, different colors of light do not have different energies. It is the brightness of the light, not the wavelength or frequency, that determines the energy of the wave. When you changed the wavelength from 500 nm to 440 nm in Step 5 of the experiment you made the wavelength of the light shorter and the frequency higher. What effect did this have on the ejected electrons? Select each effect you observed in the simulation when you changed the wavelength of the light. a The ejected electrons had a greater kinetic energy. O There was no change in the number or energy of the electrons ejected. O The number and energy of the ejected electrons was the same as before, but it didn't take as long for the electrons to start coming off the metal. O More electrons were ejected. In Step 6 of the procedure, what was the threshold wavelength for potassium (the longest wavelength that still ejected electrons), in nm?
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