Multiple Choice
A laser with a power of 1.0 mW has a beam radius of 1.0 mm. What is the peak value of the electric field in that beam? (c = 3.0 x 108 m/s, μ0 = 4π × 10-7 T ∙ m/A, ε0 = 8.85 × 10-12 C2/N ∙ m2)
A) 490 V/m
B) 840 V/m
C) 65 V/m
D) 120 V/m
E) 22 V/m
Correct Answer:
Verified
Correct Answer:
Verified
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