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Author Question: The energy gap for germanium is 0.670 eV at room temperature. What wavelength must a photon have (in ... (Read 34 times)

mpobi80

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on: Jul 28, 2018
The energy gap for germanium is 0.670 eV at room temperature. What wavelength must a photon have (in nm) to excite the electron to the conduction band?
 a. 640
  b. 1 090
  c. 1 850
  d. 2 200
  e. 925

Question 2

During one year, what is the apparent change in the noonday Sun's overhead latitude?


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fromAlphatoOmega22

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Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

47


mpobi80

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Reply 2 on: Jul 28, 2018
:D TYSM

xiazhe

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Reply 3 on: Yesterday
Gracias!

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