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QJEEM21Phb5f2: JEE Main 2021 Physics - Class 12 JEEM21Phb5f2 Solution: In an electromagnetic wave the electric field vector and…

In an electromagnetic wave the electric field vector and magnetic field vector are given as E→=E0i^\overrightarrow E = {E_0}\widehat i and B→=B0k^\overrightarrow B = {B_0}\widehat k respectively. The direction of propagation of electromagnetic wave is along :

Multiple Choice Options

  • A (k^)\left( {\widehat k} \right)
  • B j^\widehat j
  • C (−k^)\left( { - \widehat k} \right)
  • D (−j^)\left( { - \widehat j} \right)

Step-by-Step Verified Solution

Direction of propagation = E→×B→=i^×k^=−j^\overrightarrow E \times \overrightarrow B = \widehat i \times \widehat k = - \widehat j

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