the energy goes down the energy is not proportional to the frequency the energy
ID: 1284046 • Letter: T
Question
the energy goes downthe energy is not proportional to the frequencythe energy goes upthe energy does not changethe energy is inversely proportional to the frequencythe energy is proportional to the frequency(a) Calculate the wavelength of light in vacuum that has a frequency of 2.7 107 Hz. m (b) What is its wavelength in carbon disulfide? (The index of refraction of carbon disulfide is 1.628.) m (c) Calculate the energy of one photon of such light in vacuum. Express the answer in electron volts. eV (d) What is the properties of and effect on the energy of the photon when it enters the carbon disulfide? (Select all that apply.) the energy goes down the energy is not proportional to the frequency the energy goes up the energy does not change the energy is inversely proportional to the frequency the energy is proportional to the frequency
Explanation / Answer
a. apply V = Lf
so L = 3e8/2.7e7
L = 11.11 m
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L = Lo/n
L = 11.11/1.628
L = 6.82 m
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E = hc/L
E = 6.626*10^-34* 3e8/(11.11)
E = 1.789 *10^-26 J
E = 1.118 *10^-7 eV
the energy goes up
the energy is proportional to the frequency
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