The intensity of the light from a bulb incident on a surface is 0.22 W/m2. The amplitude of the magnetic field in this light – wave is__________ × 10-9 T.
(Given : Permittivity of vacuum
speed of light in vacuum c = 3 × 108 ms-1)
The intensity of the light from a bulb incident on a surface is 0.22 W/m2. The amplitude of the magnetic field in this light – wave is__________ × 10-9 T.
(Given : Permittivity of vacuum speed of light in vacuum c = 3 × 108 ms-1)
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1 Answer
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B0 = 42.9 × 10-9
42.9 Ans
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