A plane electromagnetic wave, has frequency of 2.0× 1010 Hz and its energy density is 1.02x 10-8J/m³ in vacuum. The amplitude of the magnetic field of the wave = 9 x 10° Nm? and is close to ( speed of light =3x10$ ms-): S 1. 150 nT 2. 160 nT 3. 180 nT 4. 190 nT

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A plane electromagnetic wave, has
frequency of 2.0x 1010 Hz and its energy
density is 1.02 x 10-$J/m³in vacuum. The
amplitude of the magnetic field of the wave
Nm?
2 and
1
is close to (7
- 9 × 10°
speed of light = 3x10$ ms-1):
Options 1. 150 nT
2. 160 nT
3. 180 nT
4. 190 nT
Transcribed Image Text:A plane electromagnetic wave, has frequency of 2.0x 1010 Hz and its energy density is 1.02 x 10-$J/m³in vacuum. The amplitude of the magnetic field of the wave Nm? 2 and 1 is close to (7 - 9 × 10° speed of light = 3x10$ ms-1): Options 1. 150 nT 2. 160 nT 3. 180 nT 4. 190 nT
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