CH 7 POST QUIZ

CH 7 POST QUIZ - Key Yellow (green below) Chapter 7 Post...

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Unformatted text preview: Key Yellow (green below) Chapter 7 Post Quiz ___________________________ _________________________ Last Name First Name Useful information: hc E= E = hν c =ν ⋅λ λ hν = φ h= 6.626 x 10-34 J·s c=2.998 x 108 m/s A laser pulse with a wavelength of 0.127 µm contains 1.32 mJ of energy. How many photons are contained in the laser pulse? Please circle you answer. Ephoton= . µ x µ =1.56 x 10-18 J/photon 1J 1 photon 1.32 mJ x x = 8.44 x 10 J Laser pulse 10 mJ 1.56 x 10 photons/pulse Extra Credit. Rank the following in order of increasing Energy: microwave, yellow visible and ultraviolet. Microwave < yellow visible < ultraviolet Chapter 7 Post Quiz Useful information: hc E= E = hν λ ___________________________ _________________________ Last Name First Name c =ν ⋅λ hν = φ h= 6.626 x 10-34 J·s c=2.998 x 108 m/s A laser pulse with a wavelength of 453 nm contains 375 µJ of energy. How many photons are contained in the laser pulse? Please circle you answer. Ephoton= x =4.39 x 10-19 J/photon 375 μJ 1J 1 photon x x = 8.55 x 10 Laser pulse 10 μJ 4.39 x 10 J photons/pulse Extra Credit. Rank the following in order of increasing Energy: infrared, blue visible and radio. Radio < infrared < Blue visible ...
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This note was uploaded on 07/10/2011 for the course MATH 251 taught by Professor Astina during the Spring '11 term at Portland State.

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CH 7 POST QUIZ - Key Yellow (green below) Chapter 7 Post...

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