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Question: Answered & Verified by Expert
The magnetic field of a plane electromagnetic wave is  B=3×10-8sin200π(y+ct)i^ T . Where, c=3×108 m s-1 is the speed of light the corresponding electric filed is :
PhysicsElectromagnetic WavesJEE MainJEE Main 2020 (03 Sep Shift 1)
Options:
  • A E=9sin[200π(y+ct)k^ V/m
  • B E=-10-6sin[200π(y+ct)k^ V/m
  • C E=3×10-8sin[200π(y+ct)k^ V/m
  • D E=-9sin[200π(y+ct)k^ V/m
Solution:
1874 Upvotes Verified Answer
The correct answer is: E=9sin[200π(y+ct)k^ V/m

E0=cB0

E×BCk^×i^=j^

E=3×108×3×10-8sin[200πy+ct(-k^)  =9sin[200πy+ct](-k^)

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