PLEASE HELP! Need the answer to C) in eV, NOT Jules! Also need D!!!!!! (a) Calcu

Question

PLEASE HELP! Need the answer to C) in eV, NOT Jules! Also need D!!!!!! (a) Calculate the wavelength of light in vacuum that has a frequency of . m (b) What is its wavelength in ethyl alcohol? (The index of refraction of ethyl alcohol is 1.361.) 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 ethyl alcohol? (Select all that apply.) the energy is not proportional to the frequency the energy is proportional to the frequency the energy goes down the energy goes up the energy is inversely proportional to the frequency the energy does not change

Explanation / Answer

a) wavelength - speed/f

=3*10^8/(9.8*10^12)

=3.06*10^-5 m

b)wavelength = 3.06*10^-5/1.361

=2.25*10^-5 m

c)energy= hc/lambda

=6.616*10^-34*3*10^8/(3.06*10^-5*1.6*10^-19)

=0.04 eV

d)the enrgy is proportional to frequency, the energy does not change

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