Homework%2004

Homework%2004 - EEE 539Spring 2008 Homework 4 2.22 An...

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Unformatted text preview: EEE 539Spring 2008 Homework 4 2.22 An electron is bound in a one-dimensional infinite potential well with a width of 100 . Determine the energy levels for n = 1,2,3. From (2.37), we have meV n J n n ma n E n 2 22 2 2 9 31 2 34 2 2 2 2 2 2 77 . 3 10 031 . 6 ) 10 10 ( 10 1 . 9 2 ) 10 0546 . 1 ( 2 = = = = h Hence . 9 . 33 3 08 . 15 2 77 . 3 1 3 2 1 meV E n meV E n meV E n = = = = = = 2.23 A one-dimensional infinite potential well with a width of 12 contains an electron. (a) Calculate the first two energy levels that the electron may occupy. (b) If an electron drops from the second energy level to the first, what is the wavelength of a photon that might be emitted? From (2.37), we have J n n ma n E n 20 2 2 9 31 2 34 2 2 2 2 2 2 10 19 . 4 ) 10 2 . 1 ( 10 1 . 9 2 ) 10 0546 . 1 ( 2 = = = h (a) eV J E 262 . 10 19 . 4 20 1 = = ....
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This homework help was uploaded on 04/03/2008 for the course EEE 352 taught by Professor Ferry during the Spring '08 term at ASU.

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Homework%2004 - EEE 539Spring 2008 Homework 4 2.22 An...

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