A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude of the maximum electric field in this electromagnetic wave is given by [Take, permittivity of space, εo = 9 × 10-12 SI units and speed of light, c = 3 × 108 m/s]

A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude

1.	A 27 mW laser beam has a cross-sectional area of 10 mm2. The magnitude of the maximum electric field in this electromagnetic wave is given by [Take, permittivity of space, εo = 9 × 10-12 SI units and speed of light, c = 3 × 108 m/s]
A.	1 kV/m
B.	0.7 kV/m
C.	2 kV/m
D.	1.4 kV/m
Answer» E.