The intensity of electromagnetic radiation is 316x103 W 2.01x10 W m 2nd 27 5.00x

Question

The intensity of electromagnetic radiation is 316x103 W 2.01x10 W m 2nd 27 5.00x 103 m The average pressure is 21 2 2.01x10 Wim ll 1.34x10 Pa 3x108 m/s The intensity of electromagnetic wave is The maximum value of electric field i s A 2 47TX10 'H/rm 3x108 m/s 2.01x10-3 W/m2) 2 47x10 3x10 2.01x10 1.23 NIC The maximum value of magnetic field is Eo 1.23 NIC 4.10x 10 T 3x100 m/s The average density is uz EOE 3.85x10 1.23 NIC) 1.34x10 ll J The percentage of average density due to magnetic fieldis 50% The percentage of average density due to electric field is 50%.

Explanation / Answer

c) average density = E0 E2 / 2

= (8.85 * 10-12 * 1.232) / (2)

= 6.69 * 10-12 J/m3

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