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Author Question: Isotope A has a decay constant of 0.723 s-1 and isotope B has a decay constant of 0.514 s-1. Which ... (Read 249 times)

kellyjaisingh

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on: Jul 29, 2018
Isotope A has a decay constant of 0.723 s-1 and isotope B has a decay constant of 0.514 s-1. Which isotope has a longer half-life?
 
  A) isotope A B) isotope B

Question 2

A beam of light is polarized in a vertical plane and has an intensity I0.
 
  The beam passes through an ideal polarizer and then through an ideal analyzer whose axis is set horizontally. If the axis of the polarizer is set at 60 with the vertical, what is the ratio of the intensity of the final beam to I0?
  A) 0.37 B) 0.43 C) 0.19 D) 0.25 E) 0.31


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blazinlyss

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Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

C


kellyjaisingh

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

bigcheese9

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Reply 3 on: Yesterday
Gracias!

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