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mikael mikael
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Posts: 12017
10 years ago

 
Light from a laser forms a 1.31 mm diameter spot on a wall. If the light intensity in the spot is
2.12 × 104 W/m2, what is the power output of the laser? 
A)
 
28.6 mW 
B)
 
17.7 mW 
C)
 
24.0 mW 
D)
 
33.2 mW 
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Staff Member
Educator
10 years ago
AA
Mastering in Nutritional Biology
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mikael Author
wrote...
Donated
10 years ago
Thanks for helping, answers my question perfectly.
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