Question

Sunlight just outside Earth’s atmosphere has an intensity of 1.40 kW/m2. Calculate (a) Em and (b) Bm for sunlight there, assuming it to be a plane wave.

Name: sunlight just outside earths atmosphere has an intensity of 140 kwm2 calculate a em and b bm for sunlight there assuming it to be a plane wave 22232
Uploaded: 2022-05-06T17:54:16-08:00
Duration: 3 min 57 s
Channel: Sri K
Description: sunlight just outside earths atmosphere has an intensity of 140 kwm2 calculate a em and b bm for sunlight there assuming it to be a plane wave 22232

          Sunlight just outside Earth’s atmosphere has an intensity of 1.40 kW/m2. Calculate (a) Em and (b) Bm for sunlight there, assuming it to be a plane wave.

Added by Aurora D.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Sri K

05/06/2022

Step 1

40 kW/m^2 = 1.40 x 10^3 W/m^2 Speed of light, c = 3 x 10^8 m/s Permittivity of free space, ε0 = 4π x 10^-7 Tm/A Using the formula for electric field: Em = √(2 * I / c * ε0) Substitute the given values: Em = √(2 * 1.40 x 10^3 / (3 x 10^8) * (4π x 10^-7)) Em = Show more…

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Sunlight just outside Earth’s atmosphere has an intensity of 1.40 kW/m2. Calculate (a) Em and (b) Bm for sunlight there, assuming it to be a plane wave.