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Physics - EM Waves Question with Solution | TestHub

PhysicsEM WavesElectromagnetic wavesEasy2 minPYQ_2021
PhysicsEasysingle choice

Intensity of sunlight is observed as0.092 Wm-2at a point in free space. What will be the peak value of magnetic field at that point ?ε0=8.85×10-12 C2 N-1 m-2

Options:

Answer:
A
Solution:

Iavg =B02C2μ0&1μ0=ϵ0C2
I=B022ϵ0C3
 B0=2Iϵ0C3
 B0=2.77×10-8 T

Stream:JEESubject:PhysicsTopic:EM WavesSubtopic:Electromagnetic waves
2mℹ️ Source: PYQ_2021

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