7-2: Wavelength, Frequency, and Energy
Chapter 7-2

Dr. Robert Belford & Rebekah Reinhart




Question 1
How many photons of microwave radiation (125nm) would be required to raise the temperature of 3.0L of water from room temperature (25oC) to its boiling point?
(A)  5.9*1023
(B)  4.7*1030
(C)  3.9*1020
(D)  NOTA
 
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Question 2
Calculate the frequency of radiation whose wavelength is 452nm.
(A)  1.4*102Hz
(B)  6.6*105Hz
(C)  6.6*1014Hz
(D)  NOTA
 
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Question 3
Calculate the energy of radiation whose wavelength is 452nm.
(A)  2.9*105J
(B)  6.7*10-43J
(C)  4.4*10-19J
(D)  NOTA
 
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Question 4
Calculate the energy of one mole of photons of radiation whose wavelength is 452nm.
(A)  6.7*10-43J
(B)  2.6*105J
(C)  4.4*10-19J
(D)  NOTA
 
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Question 5
Calculate the wavelength of a source whose frequency is 104.9Hz.
(A)  1.896*10-27m
(B)  2.860*106m
(C)  3.147*1010m
(D)  NOTA
 
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Question 6
Calculate the energy of a source with a frequency of 104.9Hz.
(A)  6.955*10-32J
(B)  6.320*10-36J
(C)  1.896*10-27J
(D)  NOTA
 
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