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Author Question: A quantum of radiation has an energy of 1.3 keV. What is its frequency? (h = 6.63 10-34 Js and 1 eV ... (Read 63 times)

erika

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on: Jul 28, 2018
A quantum of radiation has an energy of 1.3 keV. What is its frequency? (h = 6.63  10-34 Js and 1 eV = 1.60  10-19 J)
 a. 6.3  1017 Hz
  c. 4.8  1017 Hz
  b. 3.1  1017 Hz
  d. 7.2  1017 Hz

Question 2

As the temperature of a radiation emitting blackbody becomes lower, what happens to the peak wavelength of the radiation?
 a. remains constant
  b. increases
  c. decreases
  d. is directly proportional to temperature


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kjo;oj

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

B

Answer to Question 2

B


erika

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Reply #2 on: Jul 28, 2018
TY


kjo;oj

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Reply #3 on: Jul 28, 2018
You're welcome


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