The intensity of a laser beam is 450 W/m2. What is the rms value of the electric field of this laser beam? The permittivity of free space ϵ0 = 8.85 × 10-12 C2/N · m2 and the permeability of free space µ0 = 4π× 10-7 N/A2.)
A) 1.7 × 105 V/m
B) 5.8 × 102 V/m
C) 3.4 × 105 V/m
D) 4.1 × 102 V/m
E) 1.3 × 103 V/m
Correct Answer:
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