What is an Electromagnetic Wave? Video Lessons

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Problem: The energy that light carries is related to the frequency of the light by the equation E = hf where h is a constant equal to 6.626x10 -34 Js. Blue light of wavelength 400 nm passes from air into a medium with an index of refraction of 1.7.  (a) What is the energy of the light in air? (b) What is the energy of the light in the medium?

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Problem Details

The energy that light carries is related to the frequency of the light by the equation

E = hf

where h is a constant equal to 6.626x10 -34 Js. Blue light of wavelength 400 nm passes from air into a medium with an index of refraction of 1.7. 

(a) What is the energy of the light in air?

(b) What is the energy of the light in the medium?

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