JEE Main 202120 JulyEvening Shift
- Exam
- JEE Main
- Year
- 2021
- Date
- 20 July
- Shift
- Evening Shift
- Subject
- Physics
- Chapter
- Electromagnetic Waves
JEE Main 2021 · 20 July · Evening Shift · Physics · Electromagnetic Waves
In an electromagnetic wave, the electric field vector and magnetic...
In an electromagnetic wave, the electric field vector and magnetic field vector are given as \overset{\to}{E} = {E}_{0}\overset{^}{i} and \overset{\to}{B} = {B}_{0}\overset{^}{k}, respectively. The direction of
propagation of electromagnetic wave is along:
propagation of electromagnetic wave is along:
Options
- A( \overset{^}{k} )
- B\overset{^}{J}
- C( - \overset{^}{k} )
- D( - \overset{^}{j} )
Correct answer
D. ( - \overset{^}{j} )
Step-by-step solution
Direction of propagation = \overset{\to}{E} \times \overset{\to}{B} = \overset{^}{i} \times \overset{^}{k} = - \overset{^}{j}.