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NEET 2002 (AIPMT) · Nature of EM Waves & Wave Equation

Nature of EM Waves & Wave Equation question from NEET 2002 (AIPMT)

Q91NEET 2002 · AIPMTEasy

Nature of EM Waves & Wave Equation

The velocity of electromagnetic wave is parallel to

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Answer: (b)

  1. The Poynting vector S⃗=1μ0E⃗×B⃗\vec{S} = \frac{1}{\mu_0}\vec{E}\times\vec{B} gives the direction of energy flow, i.e. of propagation.
  2. So the answer is (b) E⃗×B⃗\vec{E}\times\vec{B}.
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