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A Totally Absorbing Surface Having an Area of 7

Question 25

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A totally absorbing surface having an area of 7.7 cm2 faces a small source of sinusoidal electromagnetic radiation that is 2.4 m away.At the surface,the electric field amplitude of the radiation is 84 V/m. A totally absorbing surface having an area of 7.7 cm<sup>2</sup> faces a small source of sinusoidal electromagnetic radiation that is 2.4 m away.At the surface,the electric field amplitude of the radiation is 84 V/m. μ<sub>0</sub> = 4π × 10<sup>-7</sup> T • m/A, (a)What is the radiation pressure exerted on the surface? (b)What is the total power output of the source,if it is assumed to radiate uniformly in all directions? μ0 = 4π × 10-7 T • m/A, A totally absorbing surface having an area of 7.7 cm<sup>2</sup> faces a small source of sinusoidal electromagnetic radiation that is 2.4 m away.At the surface,the electric field amplitude of the radiation is 84 V/m. μ<sub>0</sub> = 4π × 10<sup>-7</sup> T • m/A, (a)What is the radiation pressure exerted on the surface? (b)What is the total power output of the source,if it is assumed to radiate uniformly in all directions? (a)What is the radiation pressure exerted on the surface?
(b)What is the total power output of the source,if it is assumed to radiate uniformly in all directions?

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(a)0.031 µ...

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